Revert "Harden hidden api checks."

Revert submission 1203343-hidden-api-check-hardening

Reason for revert: art-asan target failure
Reverted Changes:
I5af9f79f5: Add change id for hidden api check hardening
Ifc8d39ba2: Harden hidden api checks.

Change-Id: Ifb824ff00cb78f03cd388c56dd7411f5c51bb531

1 files changed, 2 insertions, 14 deletions

diff --git a/runtime/native/java_lang_Class.cc b/runtime/native/java_lang_Class.cc
index 11399c07ba..da87713d54 100644
--- a/runtime/native/java_lang_Class.cc
+++ b/runtime/native/java_lang_Class.cc
@@ -55,17 +55,12 @@
 
 namespace art {
 
-// Should be the same as dalvik.system.VMRuntime.HIDDEN_API_CHECK_HARDENING.
-// Corresponds to a bug id.
-static constexpr uint64_t kHiddenApiCheckHardeningId = 142365358;
-
 // Walks the stack, finds the caller of this reflective call and returns
 // a hiddenapi AccessContext formed from its declaring class.
 static hiddenapi::AccessContext GetReflectionCaller(Thread* self)
     REQUIRES_SHARED(Locks::mutator_lock_) {
-  // Walk the stack and find the first frame not from java.lang.Class,
-  // java.lang.invoke or java.lang.reflect. This is very expensive.
-  // Save this till the last.
+  // Walk the stack and find the first frame not from java.lang.Class and not
+  // from java.lang.invoke. This is very expensive. Save this till the last.
   struct FirstExternalCallerVisitor : public StackVisitor {
     explicit FirstExternalCallerVisitor(Thread* thread)
         : StackVisitor(thread, nullptr, StackVisitor::StackWalkKind::kIncludeInlinedFrames),
@@ -98,13 +93,6 @@ static hiddenapi::AccessContext GetReflectionCaller(Thread* self)
             && !m->IsClassInitializer()) {
           return true;
         }
-        // Check for classes in the java.lang.reflect package.
-        if (Runtime::Current()->isChangeEnabled(kHiddenApiCheckHardeningId)) {
-          ObjPtr<mirror::Class> method_class = GetClassRoot<mirror::Method>();
-          if (declaring_class->IsInSamePackage(method_class)) {
-            return true;
-          }
-        }
       }
 
       caller = m;