[ic] Remove unnecessary access rights checks from the IC handlers.

src/ic/x87/handler-compiler-x87.cc

Index: src/ic/x87/handler-compiler-x87.cc
diff --git a/src/ic/x87/handler-compiler-x87.cc b/src/ic/x87/handler-compiler-x87.cc
index fdb8fa5d1ea8511575b3bc55515d1564ad35a0d0..18e7c19770d1420268cc18bf9102a46eb17c21d1 100644
--- a/src/ic/x87/handler-compiler-x87.cc
+++ b/src/ic/x87/handler-compiler-x87.cc
@@ -453,16 +453,6 @@ Register PropertyHandlerCompiler::CheckPrototypes(
     current = isolate()->global_object();
   }
 
-  // Check access rights to the global object.  This has to happen after
-  // the map check so that we know that the object is actually a global
-  // object.
-  // This allows us to install generated handlers for accesses to the
-  // global proxy (as opposed to using slow ICs). See corresponding code
-  // in LookupForRead().
-  if (receiver_map->IsJSGlobalProxyMap()) {
-    __ CheckAccessGlobalProxy(reg, scratch1, scratch2, miss);
-  }
-
   Handle<JSObject> prototype = Handle<JSObject>::null();
   Handle<Map> current_map = receiver_map;
   Handle<Map> holder_map(holder()->map());
@@ -471,11 +461,6 @@ Register PropertyHandlerCompiler::CheckPrototypes(
   while (!current_map.is_identical_to(holder_map)) {
     ++depth;
 
-    // Only global objects and objects that do not require access
-    // checks are allowed in stubs.
-    DCHECK(current_map->IsJSGlobalProxyMap() ||
-           !current_map->is_access_check_needed());
-
     prototype = handle(JSObject::cast(current_map->prototype()));
     if (current_map->IsJSGlobalObjectMap()) {
       GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current),