Backed out changeset b0d41235146a

Bug 454561 disable tracing when JavaScript-Debugger is enabled [ @ jsd_lock ]
this isn't the correct fix
r=graydon

dom/src/base/nsJSEnvironment.cpp

@@ -1172,12 +1172,6 @@ nsJSContext::JSOptionChangedCallback(const char *pref, void *data)
   PRBool useJIT = nsContentUtils::GetBoolPref(chromeWindow ?
                                               js_jit_chrome_str :
                                               js_jit_content_str);
-
-#ifdef MOZ_JSDEBUGGER
-  if (context->mContext->debugHooks->debuggerHandler)
-    useJIT = PR_FALSE;
-#endif
-
   if (useJIT)
     newDefaultJSOptions |= JSOPTION_JIT;
   else