ci: remove inline comment on exit 75

Author: Leiyks

.gitlab/wait-for-service-ready.sh

@@ -115,7 +115,7 @@ if [ -n "${WAIT_FOR:-}" ]; then
     service_type="$(detect_service_type "${host}")"
 
     if ! wait_for_single_service "${host}" "${port}" "${service_type}" 30 5; then
-      exit 75  # EX_TEMPFAIL: triggers infra-sentinel retry in GitLab CI
+      exit 75
     fi
   done
 fi