remove lgtm

README.md

@@ -5,7 +5,6 @@
 [![njsscan sarif](https://github.com/bicstone/backlog-notify/actions/workflows/njsscan-analysis.yml/badge.svg)](https://github.com/bicstone/backlog-notify/actions/workflows/njsscan-analysis.yml)
 [![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fbicstone%2Fbacklog-notify.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2Fbicstone%2Fbacklog-notify?ref=badge_shield)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=bicstone_backlog-notify&metric=alert_status)](https://sonarcloud.io/dashboard?id=bicstone_backlog-notify)
-[![Total alerts](https://img.shields.io/lgtm/alerts/g/bicstone/backlog-notify.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/bicstone/backlog-notify/alerts/)
 [![DeepSource](https://deepsource.io/gh/bicstone/backlog-notify.svg/?label=active+issues&token=iPw2LS4cY5EQQH_JiN72YOr2)](https://deepsource.io/gh/bicstone/backlog-notify/?ref=repository-badge)
 [![codecov](https://codecov.io/gh/bicstone/backlog-notify/branch/master/graph/badge.svg?token=QRLLFDZD15)](https://codecov.io/gh/bicstone/backlog-notify)