patch should not have been allowed

This was discussed [here][1] but ignored.

[1]: bfff3fa390 (r15654625)

License: MIT
Signed-off-by: Steven Allen <steven@stebalien.com>

core/commands/root.go

@@ -171,7 +171,6 @@ var rootROOldSubcommands = map[string]*oldcmds.Command{
 			"links": ocmd.ObjectLinksCmd,
 			"get":   ocmd.ObjectGetCmd,
 			"stat":  ocmd.ObjectStatCmd,
-			"patch": ocmd.ObjectPatchCmd,
 		},
 	},
 	"dag": &oldcmds.Command{