Remove the flaky testCustomSCMName
Remove the flaky testCustomSCMName

Not valuable enough to have it distract from other development.

jenkinsci/git-plugin,martinda/git-plugin,martinda/git-plugin,jenkinsci/git-plugin,jenkinsci/git-plugin,MarkEWaite/git-plugin,MarkEWaite/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin,martinda/git-plugin,MarkEWaite/git-plugin