diff -r 04baab18d60a -r b16cb0a27377 mercurial/debugcommands.py
--- a/mercurial/debugcommands.py	Sun May 14 16:19:47 2017 +0900
+++ b/mercurial/debugcommands.py	Sun May 14 16:42:16 2017 +0900
@@ -390,42 +390,6 @@
             ui.write(', '.join(ui.label(e, e) for e in effects.split()))
         ui.write('\n')
 
-@command('debugcommands', [], _('[COMMAND]'), norepo=True)
-def debugcommands(ui, cmd='', *args):
-    """list all available commands and options"""
-    for cmd, vals in sorted(commands.table.iteritems()):
-        cmd = cmd.split('|')[0].strip('^')
-        opts = ', '.join([i[1] for i in vals[1]])
-        ui.write('%s: %s\n' % (cmd, opts))
-
-@command('debugcomplete',
-    [('o', 'options', None, _('show the command options'))],
-    _('[-o] CMD'),
-    norepo=True)
-def debugcomplete(ui, cmd='', **opts):
-    """returns the completion list associated with the given command"""
-
-    if opts.get('options'):
-        options = []
-        otables = [commands.globalopts]
-        if cmd:
-            aliases, entry = cmdutil.findcmd(cmd, commands.table, False)
-            otables.append(entry[1])
-        for t in otables:
-            for o in t:
-                if "(DEPRECATED)" in o[3]:
-                    continue
-                if o[0]:
-                    options.append('-%s' % o[0])
-                options.append('--%s' % o[1])
-        ui.write("%s\n" % "\n".join(options))
-        return
-
-    cmdlist, unused_allcmds = cmdutil.findpossible(cmd, commands.table)
-    if ui.verbose:
-        cmdlist = [' '.join(c[0]) for c in cmdlist.values()]
-    ui.write("%s\n" % "\n".join(sorted(cmdlist)))
-
 @command('debugcreatestreamclonebundle', [], 'FILE')
 def debugcreatestreamclonebundle(ui, repo, fname):
     """create a stream clone bundle file