Remove unnecessary checks in CompileStoreInterceptor on a64.

BUG=
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/163963003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19431 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/a64/stub-cache-a64.cc

@@ -1293,18 +1293,6 @@ Handle<Code> StoreStubCompiler::CompileStoreInterceptor(
 
   ASM_LOCATION("StoreStubCompiler::CompileStoreInterceptor");
 
-  // Check that the map of the object hasn't changed.
-  __ CheckMap(receiver(), scratch1(), Handle<Map>(object->map()), &miss,
-              DO_SMI_CHECK);
-
-  // Perform global security token check if needed.
-  if (object->IsJSGlobalProxy()) {
-    __ CheckAccessGlobalProxy(receiver(), scratch1(), &miss);
-  }
-
-  // Stub is never generated for non-global objects that require access checks.
-  ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded());
-
   __ Push(receiver(), this->name(), value());
 
   // Do tail-call to the runtime system.
@@ -1312,10 +1300,6 @@ Handle<Code> StoreStubCompiler::CompileStoreInterceptor(
       ExternalReference(IC_Utility(IC::kStoreInterceptorProperty), isolate());
   __ TailCallExternalReference(store_ic_property, 3, 1);
 
-  // Handle store cache miss.
-  __ Bind(&miss);
-  TailCallBuiltin(masm(), MissBuiltin(kind()));
-
   // Return the generated code.
   return GetCode(kind(), Code::FAST, name);
 }