Revert "pVM to use Secretkeeper protected secrets"

Revert submission 2705357-sk_vm

Reason for revert: DroidMonitor-triggered revert due to breakage https://android-build.corp.google.com/builds/quarterdeck?branch=git_aosp-main-with-phones&target=aosp_oriole-trunk_staging-userdebug&lkgb=11221468&lkbb=11221626&fkbb=11221480

Reverted changes: /q/submissionid:2705357-sk_vm

Bug: 316391577
Change-Id: I8ba23154f91edd3bd239b8eb3a1240adbcb452ff
diff --git a/virtualizationservice/aidl/Android.bp b/virtualizationservice/aidl/Android.bp
index 8ca375a..c69fe8f 100644
--- a/virtualizationservice/aidl/Android.bp
+++ b/virtualizationservice/aidl/Android.bp
@@ -57,10 +57,7 @@
 aidl_interface {
     name: "android.system.virtualmachineservice",
     srcs: ["android/system/virtualmachineservice/**/*.aidl"],
-    imports: [
-        "android.hardware.security.secretkeeper-V1",
-        "android.system.virtualizationcommon",
-    ],
+    imports: ["android.system.virtualizationcommon"],
     unstable: true,
     backend: {
         java: {
diff --git a/virtualizationservice/aidl/android/system/virtualmachineservice/IVirtualMachineService.aidl b/virtualizationservice/aidl/android/system/virtualmachineservice/IVirtualMachineService.aidl
index cf91302..3c60478 100644
--- a/virtualizationservice/aidl/android/system/virtualmachineservice/IVirtualMachineService.aidl
+++ b/virtualizationservice/aidl/android/system/virtualmachineservice/IVirtualMachineService.aidl
@@ -15,7 +15,6 @@
  */
 package android.system.virtualmachineservice;
 
-import android.hardware.security.secretkeeper.ISecretkeeper;
 import android.system.virtualizationcommon.Certificate;
 import android.system.virtualizationcommon.ErrorCode;
 
@@ -55,11 +54,4 @@
      *         key's certificate chain. The attestation key is provided in the CSR.
      */
     Certificate[] requestAttestation(in byte[] csr);
-
-    /**
-     * Request connection to Secretkeeper. This is used by pVM to store Anti-Rollback protected
-     * secrets. Note that the return value is nullable to reflect that Secretkeeper HAL may not be
-     * present.
-     */
-    @nullable ISecretkeeper getSecretkeeper();
 }