Issue with text format configuration after uninstall

Problem/Motivation

After an uninstall of this module the "customTable" entry remains present in the Toolbar configuration where CKEditor is set as Text editor for text formats, for example Full HTML. The toolbar configuration displays text entries only instead of icons.

Steps to reproduce

Uninstall module and check out the toolbar configuration for the text format where the "customTable" entry was added.

Proposed resolution

Delete from toolbar configuration (for the relevant text formats) when uninstalled.