[PATCH evolve-ext] inhibit: remove unused import

[Laurent Charignon]

# HG changeset patch
# User Laurent Charignon <lcharignon at fb.com>
# Date 1447958852 28800
#      Thu Nov 19 10:47:32 2015 -0800
# Node ID 2fc15e372ac7b7fbfc51b9b3e6f1fd7442f1dd6d
# Parent  48547b4c77defdd17c670b1eb0eb94272edf0207
inhibit: remove unused import

The error module from mercurial was imported but unused in the inhibit code.

diff --git a/hgext/inhibit.py b/hgext/inhibit.py
--- a/hgext/inhibit.py
+++ b/hgext/inhibit.py
@@ -18,7 +18,6 @@ from mercurial import localrepo
 from mercurial import obsolete
 from mercurial import extensions
 from mercurial import cmdutil
-from mercurial import error
 from mercurial import scmutil
 from mercurial import commands
 from mercurial import lock as lockmod