Do not activate liveshare on startup

[zardoy]

Why don't use live share API only when the extension gets activated?

[eamodio]

Unfortunately VS Code doesn't provide a way for extensions to detect when another extension activates (its been a LONG standing API request). Once this API exists we will very gladly convert over to using it.

Also if you don't want to use the LiveShare integration there is now a gitlens.liveshare.enabled setting to control it, which will completely avoid activating it.