extensions: remove unused imports

hgext/convert/subversion.py

@@ -2,7 +2,6 b''
 #
 # Copyright(C) 2007 Daniel Holth et al
 
-import locale
 import os
 import re
 import sys

hgext/share.py

@@ -5,7 +5,6 b''
 
 '''share a common history between several working directories'''
 
-import os
 from mercurial.i18n import _
 from mercurial import hg, commands