Merge branch 'dev' of github.com:jpush/jmessage-react-plugin into dev

Author: KenChoi

ios/RCTJMessageModule/RCTJMessageModule.m

@@ -244,10 +244,7 @@ - (void)didReceiveJMessageMessage:(NSNotification *)notification {
       if (!error) {
         NSArray *users = resultObject;
         JMSGUser *user = users[0];
-        
-        [user thumbAvatarData:^(NSData *data, NSString *objectId, NSError *error) {
-          successCallback(@[[user userToDictionary]]);
-        }];
+        successCallback(@[[user userToDictionary]]);
       } else {
         failCallback(@[[error errorToDictionary]]);
       }