"contrib.xpoll.home.title" remains in the Navigation panel on the Main wiki after uninstalling

[ane-gabriela]

Steps to reproduce:

1. Install Polls on the Main wiki - in this case it was installed on farm as there were subwikis also
2. Get Trial license
3. Create some polls
4. Uninstall the Ideas app

Expected results: The app is uninstalled.

Actual results: The app is uninstalled but it remains in the Navigation panel as "contrib.xpoll.home.title"

Environment: Windows 10, XWiki 9.11 and 10.8.3 Standard and Chrome 78, Polls Application (Pro) 2.0

NOTE: On the Subwiki the Polls remained as XPoll

9.11:

10.8.3: