--- a/mercurial/commands.py	Wed Aug 17 20:57:57 2016 -0700
+++ b/mercurial/commands.py	Wed Aug 17 20:58:16 2016 -0700
@@ -1858,17 +1858,6 @@
     with repo.wlock(False):
         return cmdutil.copy(ui, repo, pats, opts)
 
-@command('debugfsinfo', [], _('[PATH]'), norepo=True)
-def debugfsinfo(ui, path="."):
-    """show information detected about current filesystem"""
-    util.writefile('.debugfsinfo', '')
-    ui.write(('exec: %s\n') % (util.checkexec(path) and 'yes' or 'no'))
-    ui.write(('symlink: %s\n') % (util.checklink(path) and 'yes' or 'no'))
-    ui.write(('hardlink: %s\n') % (util.checknlink(path) and 'yes' or 'no'))
-    ui.write(('case-sensitive: %s\n') % (util.fscasesensitive('.debugfsinfo')
-                                and 'yes' or 'no'))
-    os.unlink('.debugfsinfo')
-
 @command('debuggetbundle',
     [('H', 'head', [], _('id of head node'), _('ID')),
     ('C', 'common', [], _('id of common node'), _('ID')),