Hm, that's a nasty one. There are a couple of things that can be done now to solve that problem. I've listed them below, starting with the least destructive ones.
- Run 'devenv /Setup' and wait for it to finish.
- Install JustCode and uninstall it again.
- Go to Tools->Import and Export Settings -> Reset all settings (that will reset ALL your settings, though).
I am sorry about the trouble caused. Rather unfortunately, there is not much we can do about this problem. We are calling a simple VS API to remove these menus and sometimes (as in your case) it wouldn't do the job and it'll leave us stuck.
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.