diff --git a/libs/binder/ndk/Android.bp b/libs/binder/ndk/Android.bp
index a7423b3..5710bbf 100644
--- a/libs/binder/ndk/Android.bp
+++ b/libs/binder/ndk/Android.bp
@@ -82,7 +82,6 @@
 
     llndk: {
         symbol_file: "libbinder_ndk.map.txt",
-        export_llndk_headers: ["libvendorsupport_llndk_headers"],
     },
 
     cflags: [
@@ -110,11 +109,9 @@
     ],
 
     header_libs: [
-        "libvendorsupport_llndk_headers",
         "jni_headers",
     ],
     export_header_lib_headers: [
-        "libvendorsupport_llndk_headers",
         "jni_headers",
     ],
 
diff --git a/libs/binder/ndk/include_cpp/android/binder_interface_utils.h b/libs/binder/ndk/include_cpp/android/binder_interface_utils.h
index 0ad110e..c6518d8 100644
--- a/libs/binder/ndk/include_cpp/android/binder_interface_utils.h
+++ b/libs/binder/ndk/include_cpp/android/binder_interface_utils.h
@@ -30,16 +30,14 @@
 #include <android/binder_auto_utils.h>
 #include <android/binder_ibinder.h>
 
-#if defined(__ANDROID_VENDOR_API__)
-#include <android/llndk-versioning.h>
-#elif !defined(API_LEVEL_AT_LEAST)
 #if defined(__BIONIC__)
-#define API_LEVEL_AT_LEAST(sdk_api_level, vendor_api_level) \
-    (__builtin_available(android sdk_api_level, *))
+#define API_LEVEL_AT_LEAST(sdk_api_level) __builtin_available(android sdk_api_level, *)
+#elif defined(TRUSTY_USERSPACE)
+// TODO(b/349936395): set to true for Trusty
+#define API_LEVEL_AT_LEAST(sdk_api_level) (false)
 #else
-#define API_LEVEL_AT_LEAST(sdk_api_level, vendor_api_level) (true)
+#define API_LEVEL_AT_LEAST(sdk_api_level) (true)
 #endif  // __BIONIC__
-#endif  // __ANDROID_VENDOR_API__
 
 #if __has_include(<android/binder_shell.h>)
 #include <android/binder_shell.h>
@@ -298,9 +296,8 @@
 #endif
 
 #if defined(__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__) || __ANDROID_API__ >= 36
-    if API_LEVEL_AT_LEAST (36, 202504) {
-        if (codeToFunction != nullptr &&
-            (&AIBinder_Class_setTransactionCodeToFunctionNameMap != nullptr)) {
+    if (API_LEVEL_AT_LEAST(36)) {
+        if (codeToFunction != nullptr) {
             AIBinder_Class_setTransactionCodeToFunctionNameMap(clazz, codeToFunction,
                                                                functionCount);
         }
diff --git a/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h b/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
index 83976b3..f3f3c38 100644
--- a/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
+++ b/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
@@ -22,17 +22,14 @@
 #include <set>
 #include <sstream>
 
-// Include llndk-versioning.h only for non-system build as it is not available for NDK headers.
-#if defined(__ANDROID_VENDOR_API__)
-#include <android/llndk-versioning.h>
-#elif !defined(API_LEVEL_AT_LEAST)
 #if defined(__BIONIC__)
-#define API_LEVEL_AT_LEAST(sdk_api_level, vendor_api_level) \
-    (__builtin_available(android sdk_api_level, *))
+#define API_LEVEL_AT_LEAST(sdk_api_level) __builtin_available(android sdk_api_level, *)
+#elif defined(TRUSTY_USERSPACE)
+// TODO(b/349936395): set to true for Trusty
+#define API_LEVEL_AT_LEAST(sdk_api_level) (false)
 #else
-#define API_LEVEL_AT_LEAST(sdk_api_level, vendor_api_level) (true)
+#define API_LEVEL_AT_LEAST(sdk_api_level) (true)
 #endif  // __BIONIC__
-#endif  // __ANDROID_VENDOR_API__
 
 namespace aidl::android::os {
 
@@ -44,7 +41,7 @@
 class PersistableBundle {
    public:
     PersistableBundle() noexcept {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             mPBundle = APersistableBundle_new();
         }
     }
@@ -54,13 +51,13 @@
     PersistableBundle(PersistableBundle&& other) noexcept : mPBundle(other.release()) {}
     // duplicates, does not take ownership of the APersistableBundle*
     PersistableBundle(const PersistableBundle& other) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             mPBundle = APersistableBundle_dup(other.mPBundle);
         }
     }
     // duplicates, does not take ownership of the APersistableBundle*
     PersistableBundle& operator=(const PersistableBundle& other) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             mPBundle = APersistableBundle_dup(other.mPBundle);
         }
         return *this;
@@ -70,7 +67,7 @@
 
     binder_status_t readFromParcel(const AParcel* _Nonnull parcel) {
         reset();
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return APersistableBundle_readFromParcel(parcel, &mPBundle);
         } else {
             return STATUS_INVALID_OPERATION;
@@ -81,7 +78,7 @@
         if (!mPBundle) {
             return STATUS_BAD_VALUE;
         }
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return APersistableBundle_writeToParcel(mPBundle, parcel);
         } else {
             return STATUS_INVALID_OPERATION;
@@ -96,7 +93,7 @@
      */
     void reset(APersistableBundle* _Nullable pBundle = nullptr) noexcept {
         if (mPBundle) {
-            if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+            if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
                 APersistableBundle_delete(mPBundle);
             }
             mPBundle = nullptr;
@@ -109,7 +106,7 @@
      * what should be used to check for equality.
      */
     bool deepEquals(const PersistableBundle& rhs) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return APersistableBundle_isEqual(get(), rhs.get());
         } else {
             return false;
@@ -148,7 +145,7 @@
     inline std::string toString() const {
         if (!mPBundle) {
             return "<PersistableBundle: null>";
-        } else if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        } else if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             std::ostringstream os;
             os << "<PersistableBundle: ";
             os << "size: " << std::to_string(APersistableBundle_size(mPBundle));
@@ -159,7 +156,7 @@
     }
 
     int32_t size() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return APersistableBundle_size(mPBundle);
         } else {
             return 0;
@@ -167,7 +164,7 @@
     }
 
     int32_t erase(const std::string& key) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return APersistableBundle_erase(mPBundle, key.c_str());
         } else {
             return 0;
@@ -175,37 +172,37 @@
     }
 
     void putBoolean(const std::string& key, bool val) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             APersistableBundle_putBoolean(mPBundle, key.c_str(), val);
         }
     }
 
     void putInt(const std::string& key, int32_t val) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             APersistableBundle_putInt(mPBundle, key.c_str(), val);
         }
     }
 
     void putLong(const std::string& key, int64_t val) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             APersistableBundle_putLong(mPBundle, key.c_str(), val);
         }
     }
 
     void putDouble(const std::string& key, double val) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             APersistableBundle_putDouble(mPBundle, key.c_str(), val);
         }
     }
 
     void putString(const std::string& key, const std::string& val) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             APersistableBundle_putString(mPBundle, key.c_str(), val.c_str());
         }
     }
 
     void putBooleanVector(const std::string& key, const std::vector<bool>& vec) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             // std::vector<bool> has no ::data().
             int32_t num = vec.size();
             if (num > 0) {
@@ -222,7 +219,7 @@
     }
 
     void putIntVector(const std::string& key, const std::vector<int32_t>& vec) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             int32_t num = vec.size();
             if (num > 0) {
                 APersistableBundle_putIntVector(mPBundle, key.c_str(), vec.data(), num);
@@ -230,7 +227,7 @@
         }
     }
     void putLongVector(const std::string& key, const std::vector<int64_t>& vec) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             int32_t num = vec.size();
             if (num > 0) {
                 APersistableBundle_putLongVector(mPBundle, key.c_str(), vec.data(), num);
@@ -238,7 +235,7 @@
         }
     }
     void putDoubleVector(const std::string& key, const std::vector<double>& vec) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             int32_t num = vec.size();
             if (num > 0) {
                 APersistableBundle_putDoubleVector(mPBundle, key.c_str(), vec.data(), num);
@@ -246,7 +243,7 @@
         }
     }
     void putStringVector(const std::string& key, const std::vector<std::string>& vec) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             int32_t num = vec.size();
             if (num > 0) {
                 char** inVec = (char**)malloc(num * sizeof(char*));
@@ -261,13 +258,13 @@
         }
     }
     void putPersistableBundle(const std::string& key, const PersistableBundle& pBundle) {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             APersistableBundle_putPersistableBundle(mPBundle, key.c_str(), pBundle.mPBundle);
         }
     }
 
     bool getBoolean(const std::string& key, bool* _Nonnull val) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return APersistableBundle_getBoolean(mPBundle, key.c_str(), val);
         } else {
             return false;
@@ -275,7 +272,7 @@
     }
 
     bool getInt(const std::string& key, int32_t* _Nonnull val) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return APersistableBundle_getInt(mPBundle, key.c_str(), val);
         } else {
             return false;
@@ -283,7 +280,7 @@
     }
 
     bool getLong(const std::string& key, int64_t* _Nonnull val) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return APersistableBundle_getLong(mPBundle, key.c_str(), val);
         } else {
             return false;
@@ -291,7 +288,7 @@
     }
 
     bool getDouble(const std::string& key, double* _Nonnull val) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return APersistableBundle_getDouble(mPBundle, key.c_str(), val);
         } else {
             return false;
@@ -303,7 +300,7 @@
     }
 
     bool getString(const std::string& key, std::string* _Nonnull val) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             char* outString = nullptr;
             bool ret = APersistableBundle_getString(mPBundle, key.c_str(), &outString,
                                                     &stringAllocator, nullptr);
@@ -321,7 +318,7 @@
                                                    const char* _Nonnull, T* _Nullable, int32_t),
                         const APersistableBundle* _Nonnull pBundle, const char* _Nonnull key,
                         std::vector<T>* _Nonnull vec) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             int32_t bytes = 0;
             // call first with nullptr to get required size in bytes
             bytes = getVec(pBundle, key, nullptr, 0);
@@ -343,28 +340,28 @@
     }
 
     bool getBooleanVector(const std::string& key, std::vector<bool>* _Nonnull vec) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getVecInternal<bool>(&APersistableBundle_getBooleanVector, mPBundle, key.c_str(),
                                         vec);
         }
         return false;
     }
     bool getIntVector(const std::string& key, std::vector<int32_t>* _Nonnull vec) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getVecInternal<int32_t>(&APersistableBundle_getIntVector, mPBundle, key.c_str(),
                                            vec);
         }
         return false;
     }
     bool getLongVector(const std::string& key, std::vector<int64_t>* _Nonnull vec) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getVecInternal<int64_t>(&APersistableBundle_getLongVector, mPBundle, key.c_str(),
                                            vec);
         }
         return false;
     }
     bool getDoubleVector(const std::string& key, std::vector<double>* _Nonnull vec) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getVecInternal<double>(&APersistableBundle_getDoubleVector, mPBundle,
                                           key.c_str(), vec);
         }
@@ -389,7 +386,7 @@
     }
 
     bool getStringVector(const std::string& key, std::vector<std::string>* _Nonnull vec) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             int32_t bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), nullptr, 0,
                                                                &stringAllocator, nullptr);
             if (bytes > 0) {
@@ -406,7 +403,7 @@
     }
 
     bool getPersistableBundle(const std::string& key, PersistableBundle* _Nonnull val) const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             APersistableBundle* bundle = nullptr;
             bool ret = APersistableBundle_getPersistableBundle(mPBundle, key.c_str(), &bundle);
             if (ret) {
@@ -438,77 +435,77 @@
     }
 
     std::set<std::string> getBooleanKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getBooleanKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getIntKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getIntKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getLongKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getLongKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getDoubleKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getDoubleKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getStringKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getStringKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getBooleanVectorKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getBooleanVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getIntVectorKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getIntVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getLongVectorKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getLongVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getDoubleVectorKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getDoubleVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getStringVectorKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getStringVectorKeys, mPBundle);
         } else {
             return {};
         }
     }
     std::set<std::string> getPersistableBundleKeys() const {
-        if API_LEVEL_AT_LEAST(__ANDROID_API_V__, 202404) {
+        if (API_LEVEL_AT_LEAST(__ANDROID_API_V__)) {
             return getKeys(&APersistableBundle_getPersistableBundleKeys, mPBundle);
         } else {
             return {};
diff --git a/libs/binder/trusty/ndk/include/android/llndk-versioning.h b/libs/binder/trusty/ndk/include/android/llndk-versioning.h
deleted file mode 100644
index e955a34..0000000
--- a/libs/binder/trusty/ndk/include/android/llndk-versioning.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright (C) 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#pragma once
-
-// TODO(b/349936395): set to true for Trusty
-#define API_LEVEL_AT_LEAST(sdk_api_level, vendor_api_level) (false)
diff --git a/libs/ui/Gralloc5.cpp b/libs/ui/Gralloc5.cpp
index c9ec036..2143f79 100644
--- a/libs/ui/Gralloc5.cpp
+++ b/libs/ui/Gralloc5.cpp
@@ -23,7 +23,6 @@
 #include <aidlcommonsupport/NativeHandle.h>
 #include <android/binder_manager.h>
 #include <android/hardware/graphics/mapper/utils/IMapperMetadataTypes.h>
-#include <android/llndk-versioning.h>
 #include <binder/IPCThreadState.h>
 #include <dlfcn.h>
 #include <ui/FatVector.h>
@@ -91,7 +90,7 @@
         }
 
         void* so = nullptr;
-        if API_LEVEL_AT_LEAST (__ANDROID_API_V__, 202404) {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
             so = AServiceManager_openDeclaredPassthroughHal("mapper", mapperSuffix.c_str(),
                                                             RTLD_LOCAL | RTLD_NOW);
         } else {