clfilter: drop unnecessary explicit filtering on rebase

Hidden changeset filtering is now done at repo level. The rebaseset
computation will not include any (unless you add --hidden).

hgext/rebase.py

@@ -184,8 +184,6 b' def rebase(ui, repo, **opts):'
                 rebaseset = repo.revs(
                     '(children(ancestor(%ld, %d)) and ::(%ld))::',
                     base, dest, base)
-            # temporary top level filtering of extinct revisions
-            rebaseset = repo.revs('%ld - hidden()', rebaseset)
             if rebaseset:
                 root = min(rebaseset)
             else:
@@ -195,7 +193,7 b' def rebase(ui, repo, **opts):'
                 repo.ui.debug('base is ancestor of destination\n')
                 result = None
             elif (not (keepf or obsolete._enabled)
-                  and repo.revs('first(children(%ld) - %ld)-hidden()',
+                  and repo.revs('first(children(%ld) - %ld)',
                                 rebaseset, rebaseset)):
                 raise util.Abort(
                     _("can't remove original changesets with"