Ensure to clean useless files

cluster/sge.enable.host.queue.sh

@@ -435,8 +435,10 @@ SGE queue(s): ${RED}${sge_queues_name_print:=/dev/null}${COLOR_DEBUG}\
 for host: ${RED}${sge_hostname:=/dev/null}${COLOR_DEBUG}."
 
 	## If the queue(s) are already enable
+	### Ensure to remove any potential flag file
 	### Exit
 	is_all_queue_enable "${sge_hostname}" "${sge_queues_name}" \
+		&& rm -f -- "${sge_queue_flag_pattern}" \
 		&& exit 0
 
 	## Test all queues one by one