removed gui mode from args help

utility/tmtcc_args_parser.py

@@ -19,7 +19,7 @@ def parse_input_arguments():
 
     arg_parser.add_argument(
         '-m', '--mode', type=int, help='Target Mode. Default is 1 (Listener Mode), '
-        '0: GUI Mode, 1: Listener Mode, 2: Single Command Mode, 3: Service Test Mode, '
+        '1: Listener Mode, 2: Single Command Mode, 3: Service Test Mode, '
         '4: Software Test Mode, 5: Binary Upload Mode, 6: Unit Test Mode ', default=0)
     arg_parser.add_argument(
         '-c', '--com_if', type=int, help='Communication Interface. 0: Dummy Interface, 1: Serial, '