largefiles: remove bailifchanged check from overridepull (BC)

This brings pull --rebase with largefiles in line with pull --rebase without.

hgext/largefiles/overrides.py

@@ -717,7 +717,6 b' def overridepull(orig, ui, repo, source='
                 ui.debug('--update and --rebase are not compatible, ignoring '
                          'the update flag\n')
             del opts['rebase']
-            cmdutil.bailifchanged(repo)
             origpostincoming = commands.postincoming
             def _dummy(*args, **kwargs):
                 pass