Move requiresMainQueueSetup to the right implementation in RCTDevSettings

Summary: Changelog: [Internal]

Reviewed By: PeteTheHeat

Differential Revision: D20068813

fbshipit-source-id: fcf522ae2a075ba396d074cbf59f1ecc016b7c90

React/CoreModules/RCTDevSettings.mm

@@ -67,11 +67,6 @@ void RCTDevSettingsSetEnabled(BOOL enabled) {
   return [self initWithDefaultValues:nil];
 }
 
-+ (BOOL)requiresMainQueueSetup
-{
-  return NO;
-}
-
 - (instancetype)initWithDefaultValues:(NSDictionary *)defaultValues
 {
   if (self = [super init]) {
@@ -146,6 +141,11 @@ RCT_EXPORT_MODULE()
   return [self initWithDataSource:dataSource];
 }
 
++ (BOOL)requiresMainQueueSetup
+{
+  return NO;
+}
+
 - (instancetype)initWithDataSource:(id<RCTDevSettingsDataSource>)dataSource
 {
   if (self = [super init]) {
@@ -476,6 +476,10 @@ RCT_EXPORT_METHOD(addMenuItem:(NSString *)title)
 {
   return NO;
 }
++ (BOOL)requiresMainQueueSetup
+{
+  return NO;
+}
 - (id)settingForKey:(NSString *)key
 {
   return nil;