fix: warning for multiRemove (#268)

Author: retyui

lib/AsyncStorage.js

@@ -353,7 +353,7 @@ const AsyncStorage = {
     callback?: ?(errors: ?$ReadOnlyArray<?Error>) => void,
   ): Promise<null> {
     return new Promise((resolve, reject) => {
-      keys.forEach(checkValidInput);
+      keys.forEach(key => checkValidInput(key));
 
       RCTAsyncStorage.multiRemove(keys, function(errors) {
         const error = convertErrors(errors);