Revert of [es6] Map/Set size getter should have "get size" name

src/v8natives.js

Index: src/v8natives.js
diff --git a/src/v8natives.js b/src/v8natives.js
index 33f0c8bd03590032930b4dc8e28bc4e9a302a74f..41453d0b5364660c24f8cd9a51c93a9e71de6ffd 100644
--- a/src/v8natives.js
+++ b/src/v8natives.js
@@ -46,8 +46,7 @@
   if (typeof attributes == "undefined") {
     attributes = DONT_ENUM;
   }
-  %FunctionSetName(getter, "get " +
-      (IS_SYMBOL(name) ? "[" + %SymbolDescription(name) + "]" : name));
+  %FunctionSetName(getter, name);
   %FunctionRemovePrototype(getter);
   %DefineAccessorPropertyUnchecked(object, name, getter, null, attributes);
   %SetNativeFlag(getter);
@@ -56,10 +55,8 @@
 
 // Helper function to install a getter/setter accessor property.
 function InstallGetterSetter(object, name, getter, setter) {
-  var functionName =
-      IS_SYMBOL(name) ? "[" + %SymbolDescription(name) + "]" : name;
-  %FunctionSetName(getter, "get " + functionName);
-  %FunctionSetName(setter, "set " + functionName);
+  %FunctionSetName(getter, name);
+  %FunctionSetName(setter, name);
   %FunctionRemovePrototype(getter);
   %FunctionRemovePrototype(setter);
   %DefineAccessorPropertyUnchecked(object, name, getter, setter, DONT_ENUM);