refactor: remove redundant code in install_config.sh

The commit removes a redundant function call in the install_config.sh file. The "fn_list_config_locations" function is no longer needed for the "vints" configuration.

lgsm/modules/install_config.sh

@@ -788,7 +788,6 @@ elif [ "${shortname}" == "unt" ]; then
 	fn_list_config_locations
 elif [ "${shortname}" == "vints" ]; then
 	# Config is generated on first run
-	fn_list_config_locations
 elif [ "${shortname}" == "vs" ]; then
 	array_configs+=(server.cfg)
 	fn_fetch_default_config