Bug 1311726 - Remove second initialization of currentScript in EvaluateScript; r=jonco

first initialization is on line 3140 and covers the module case.

Differential Revision: https://phabricator.services.mozilla.com/D132606

dom/script/ScriptLoader.cpp

@@ -3177,9 +3177,6 @@ nsresult ScriptLoader::EvaluateScript(ScriptLoadRequest* aRequest) {
                                 MarkerInnerWindowIdFromJSContext(cx),
                                 profilerLabelString);
 
-      // currentScript is set to null for modules.
-      AutoCurrentScriptUpdater scriptUpdater(this, nullptr);
-
       ModuleLoadRequest* request = aRequest->AsModuleRequest();
       MOZ_ASSERT(request->mModuleScript);
       MOZ_ASSERT(!request->mOffThreadToken);