Bug 795395 - Don't unload the library immediately on failure on nsGSettingsService::Init(). r=karlt

We return a failure anyway, so the component manager calls our destructor where we do the unload

toolkit/system/gnome/nsGSettingsService.cpp

@@ -312,7 +312,6 @@ nsGSettingsService::Init()
     *kGSettingsSymbols[i].function =
       PR_FindFunctionSymbol(gioLib, kGSettingsSymbols[i].functionName);
     if (!*kGSettingsSymbols[i].function) {
-      PR_UnloadLibrary(gioLib);
       return NS_ERROR_FAILURE;
     }
   }