Control panel configlet not removed after uninstall

[hvelarde]

See: https://travis-ci.org/plone/plone.app.ldap/builds/70302789

[adaugherity]

Duplicate of #14. Not sure which to prefer since that one has the traceback and this one has the failed test skip.

[laulaz]

For the record, this only works in Plone > 5.1 (plone/Products.CMFPlone@d011a51).

Control panel configlet is not removed in previous Plone versions, leading to a traceback :

Traceback (innermost last):
  Module ZPublisher.Publish, line 138, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 48, in call_object
  Module Products.GenericSetup.tool, line 570, in manage_importAllSteps
  Module Products.GenericSetup.tool, line 379, in runAllImportStepsFromProfile
   - __traceback_info__: profile-plone.app.ldap:uninstall
  Module Products.GenericSetup.tool, line 1414, in _runImportStepsFromContext
  Module Products.GenericSetup.tool, line 1226, in _doRunImportStep
   - __traceback_info__: controlpanel
  Module Products.CMFPlone.exportimport.controlpanel, line 162, in importControlPanel
  Module Products.GenericSetup.utils, line 851, in importObjects
   - __traceback_info__: portal_controlpanel
  Module Products.GenericSetup.utils, line 512, in _importBody
  Module Products.CMFPlone.exportimport.controlpanel, line 55, in _importNode
  Module Products.CMFPlone.exportimport.controlpanel, line 64, in _initProvider
  Module Products.CMFPlone.exportimport.controlpanel, line 151, in _initConfiglets
  Module Products.CMFPlone.PloneControlPanel, line 235, in addAction
ValueError: A name is required.