I use the excellent Source Tree as a visual Git client, and really dislike messages about versioning when I’m coding. Eclipse’s Git colours and overall intrusiveness seem to be particularly bad. I couldn’t find which plugin to remove but I did find the following settings:
This setting will stop Eclipse from automatically attaching its Git functions:

Update: Newer versions of Eclipse seem to use this setting:

If you’ve already loaded some projects before disabling the above setting, you can disconnect those individual projects from Eclipse’s Git functionality here:
