[ios] removed unused errors module

ios/RNFirebase/RNFirebaseErrors.h

@@ -1,23 +0,0 @@
-#ifndef RNFirebaseErrors_h
-#define RNFirebaseErrors_h
-
-#if __has_include(<React/RCTBridgeModule.h>)
-#import <React/RCTBridgeModule.h>
-#else // Compatibility for RN version < 0.40
-#import "RCTBridgeModule.h"
-#endif
-#import "Firebase.h"
-
-@interface RNFirebaseErrors : NSObject <RCTBridgeModule> {
-
-}
-
-+ (void) handleException:(NSException *)exception
-            withCallback:(RCTResponseSenderBlock)callback;
-
-+ (NSDictionary *) handleFirebaseError:(NSString *) name
-                                 error:(NSError *) error
-                              withUser:(FIRUser *) user;
-@end
-
-#endif

ios/RNFirebase/RNFirebaseErrors.m

@@ -1,52 +0,0 @@
-#import "RNFirebaseErrors.h"
-
-@implementation RNFirebaseErrors
-
-RCT_EXPORT_MODULE(RNFirebaseErrors);
-
-+ (void) handleException:(NSException *)exception
-            withCallback:(RCTResponseSenderBlock)callback
-{
-    NSString *errDesc = [exception description];
-    NSLog(@"An error occurred: %@", errDesc);
-    // No user is signed in.
-    NSDictionary *err = @{
-                          @"error": @"No user signed in",
-                          @"description": errDesc
-                          };
-    callback(@[err]);
-}
-
-+ (NSDictionary *) handleFirebaseError:(NSString *) name
-                                 error:(NSError *) error
-                              withUser:(FIRUser *) user
-{
-    NSMutableDictionary *err = [NSMutableDictionary dictionaryWithObjectsAndKeys:
-                                name, @"name",
-                                @([error code]), @"code",
-                                [error localizedDescription], @"rawDescription",
-                                [[error userInfo] description], @"userInfo",
-                                nil];
-
-    NSString *description = @"Unknown error";
-    switch (error.code) {
-        case FIRAuthErrorCodeInvalidEmail:
-            description = @"Invalid email";
-            break;
-        case FIRAuthErrorCodeUserNotFound:
-            description = @"User not found";
-            break;
-        case FIRAuthErrorCodeNetworkError:
-            description = @"Network error";
-            break;
-        case FIRAuthErrorCodeInternalError:
-            description = @"Internal error";
-            break;
-        default:
-            break;
-    }
-    [err setValue:description forKey:@"description"];
-    return [NSDictionary dictionaryWithDictionary:err];
-}
-
-@end