Plugins: Remove pre-existing plugin installs when installing with grafana-cli (#31515)
Plugins: Remove pre-existing plugin installs when installing with grafana-cli (#31515)

* remove old install before install if exists

* fix log format
grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana