diff --git a/libc/include/android/dlext.h b/libc/include/android/dlext.h
index 05a27f3..37e4cde 100644
--- a/libc/include/android/dlext.h
+++ b/libc/include/android/dlext.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2014 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
@@ -132,70 +132,6 @@
 extern void* android_dlopen_ext(const char* filename, int flag, const android_dlextinfo* extinfo)
   __INTRODUCED_IN(21);
 
-/*
- * Initializes public and anonymous namespaces. The public_ns_sonames is the list of sonames
- * to be included into public namespace separated by colon. Example: "libc.so:libm.so:libdl.so".
- * The libraries in this list should be loaded prior to this call.
- *
- * The anon_ns_library_path is the search path for anonymous namespace. The anonymous namespace
- * is used in the case when linker cannot identify the caller of dlopen/dlsym. This happens
- * for the code not loaded by dynamic linker; for example calls from the mono-compiled code.
- */
-extern bool android_init_namespaces(const char* public_ns_sonames,
-                                    const char* anon_ns_library_path);
-
-
-enum {
-  /* A regular namespace is the namespace with a custom search path that does
-   * not impose any restrictions on the location of native libraries.
-   */
-  ANDROID_NAMESPACE_TYPE_REGULAR = 0,
-
-  /* An isolated namespace requires all the libraries to be on the search path
-   * or under permitted_when_isolated_path. The search path is the union of
-   * ld_library_path and default_library_path.
-   */
-  ANDROID_NAMESPACE_TYPE_ISOLATED = 1,
-
-  /* The shared namespace clones the list of libraries of the caller namespace upon creation
-   * which means that they are shared between namespaces - the caller namespace and the new one
-   * will use the same copy of a library if it was loaded prior to android_create_namespace call.
-   *
-   * Note that libraries loaded after the namespace is created will not be shared.
-   *
-   * Shared namespaces can be isolated or regular. Note that they do not inherit the search path nor
-   * permitted_path from the caller's namespace.
-   */
-  ANDROID_NAMESPACE_TYPE_SHARED = 2,
-  ANDROID_NAMESPACE_TYPE_SHARED_ISOLATED = ANDROID_NAMESPACE_TYPE_SHARED |
-                                           ANDROID_NAMESPACE_TYPE_ISOLATED,
-};
-
-/*
- * Creates new linker namespace.
- * ld_library_path and default_library_path represent the search path
- * for the libraries in the namespace.
- *
- * The libraries in the namespace are searched by folowing order:
- * 1. ld_library_path (Think of this as namespace-local LD_LIBRARY_PATH)
- * 2. In directories specified by DT_RUNPATH of the "needed by" binary.
- * 3. deault_library_path (This of this as namespace-local default library path)
- *
- * When type is ANDROID_NAMESPACE_TYPE_ISOLATED the resulting namespace requires all of
- * the libraries to be on the search path or under the permitted_when_isolated_path;
- * the search_path is ld_library_path:default_library_path. Note that the
- * permitted_when_isolated_path path is not part of the search_path and
- * does not affect the search order. It is a way to allow loading libraries from specific
- * locations when using absolute path.
- * If a library or any of its dependencies are outside of the permitted_when_isolated_path
- * and search_path, and it is not part of the public namespace dlopen will fail.
- */
-extern struct android_namespace_t* android_create_namespace(const char* name,
-                                                            const char* ld_library_path,
-                                                            const char* default_library_path,
-                                                            uint64_t type,
-                                                            const char* permitted_when_isolated_path);
-
 __END_DECLS
 
 #endif /* __ANDROID_DLEXT_H__ */