Revert "Add conditional check for git checkout in development path"

This reverts commit 1bad563.

Author: Eric Wheeler

bin/github-backup

@@ -4,15 +4,6 @@ import logging
 import os
 import sys
 
-
-# If we are running from a git-checkout, we can run against the development
-# tree without installing.
-if os.path.exists(os.path.join(os.path.dirname(__file__), "..", ".git")):
-    sys.path.insert(
-        0, os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
-    )
-
-
 from github_backup.github_backup import (
     backup_account,
     backup_repositories,