[ics]: Remove deprecated support for patching LoadICs and StoreICs

src/ic/handler-compiler.cc

Index: src/ic/handler-compiler.cc
diff --git a/src/ic/handler-compiler.cc b/src/ic/handler-compiler.cc
index 05e9031915ac9ca4092939b77089a3676ef944a3..fef1f63116eaff8b91b2297581c7d674da7388d6 100644
--- a/src/ic/handler-compiler.cc
+++ b/src/ic/handler-compiler.cc
@@ -640,13 +640,8 @@ Handle<Object> ElementHandlerCompiler::GetKeyedLoadHandler(
   }
   bool is_js_array = instance_type == JS_ARRAY_TYPE;
   if (elements_kind == DICTIONARY_ELEMENTS) {
-    if (FLAG_tf_load_ic_stub) {
-      TRACE_HANDLER_STATS(isolate, KeyedLoadIC_LoadElementDH);
-      return LoadHandler::LoadElement(isolate, elements_kind, false,
-                                      is_js_array);
-    }
-    TRACE_HANDLER_STATS(isolate, KeyedLoadIC_LoadDictionaryElementStub);
-    return LoadDictionaryElementStub(isolate).GetCode();
+    TRACE_HANDLER_STATS(isolate, KeyedLoadIC_LoadElementDH);
+    return LoadHandler::LoadElement(isolate, elements_kind, false, is_js_array);
   }
   DCHECK(IsFastElementsKind(elements_kind) ||
          IsFixedTypedArrayElementsKind(elements_kind));
@@ -654,16 +649,9 @@ Handle<Object> ElementHandlerCompiler::GetKeyedLoadHandler(
   bool convert_hole_to_undefined =
       is_js_array && elements_kind == FAST_HOLEY_ELEMENTS &&
       *receiver_map == isolate->get_initial_js_array_map(elements_kind);
-  if (FLAG_tf_load_ic_stub) {
-    TRACE_HANDLER_STATS(isolate, KeyedLoadIC_LoadElementDH);
-    return LoadHandler::LoadElement(isolate, elements_kind,
-                                    convert_hole_to_undefined, is_js_array);
-  } else {
-    TRACE_HANDLER_STATS(isolate, KeyedLoadIC_LoadFastElementStub);
-    return LoadFastElementStub(isolate, is_js_array, elements_kind,
-                               convert_hole_to_undefined)
-        .GetCode();
-  }
+  TRACE_HANDLER_STATS(isolate, KeyedLoadIC_LoadElementDH);
+  return LoadHandler::LoadElement(isolate, elements_kind,
+                                  convert_hole_to_undefined, is_js_array);
 }
 
 void ElementHandlerCompiler::CompileElementHandlers(