Remove -[RCTJSExecutor errorForJSError:]

Reviewed By: javache

Differential Revision: D3814718

fbshipit-source-id: 9b8c91cb81d77fda4959df26806d54c9b7be42a0

React/Executors/RCTJSCExecutor.h

@@ -56,14 +56,6 @@ RCT_EXTERN NSString *const RCTJavaScriptContextCreatedNotification;
  */
 - (instancetype)initWithUseCustomJSCLibrary:(BOOL)useCustomJSCLibrary;
 
-/**
- * Create a NSError from a JSError object.
- *
- * If available, the error's userInfo property will contain the JS stacktrace under
- * the RCTJSStackTraceKey key.
- */
-- (NSError *)errorForJSError:(JSValue *)jsError;
-
 /**
  * @experimental
  * Pass a RCTJSContextProvider object to use an NSThread/JSContext pair that have already been created.

React/Executors/RCTJSCExecutor.mm

@@ -238,11 +238,6 @@ static NSError *RCTNSErrorFromJSError(RCTJSCWrapper *jscWrapper, JSContextRef co
   return [NSError errorWithDomain:RCTErrorDomain code:1 userInfo:errorInfo];
 }
 
-- (NSError *)errorForJSError:(JSValue *)jsError
-{
-  return RCTNSErrorFromJSError(_jscWrapper, jsError.context.JSGlobalContextRef, jsError.JSValueRef);
-}
-
 #if RCT_DEV
 
 static void RCTInstallJSCProfiler(RCTBridge *bridge, JSContextRef context)