Add remove tickers telegram command

Author: DUYN

bot/services/telegram.py

@@ -217,6 +217,10 @@ def _add_tickers(self, update: Update, context: CallbackContext):
 
         return ConversationHandler.END
 
+    @authorized_only
+    def _remove_tickers(self, update: Update, context: CallbackContext):
+        pass
+
     @authorized_only
     def _cancel_conversation(self, update: Update, context: CallbackContext):
         logger.info("Conversation is canceled")