fetch: drop force arg for commit (issue1752)

This appears to be unneeded and forces fetch commits to examine clean files.

hgext/fetch.py

@@ -127,8 +127,7 b" def fetch(ui, repo, source='default', **"
             editor = cmdutil.commiteditor
             if opts.get('force_editor') or opts.get('edit'):
                 editor = cmdutil.commitforceeditor
-            n = repo.commit(message, opts['user'], opts['date'],
-                            force=True, editor=editor)
+            n = repo.commit(message, opts['user'], opts['date'], editor=editor)
             ui.status(_('new changeset %d:%s merges remote changes '
                         'with local\n') % (repo.changelog.rev(n),
                                            short(n)))