[TASK] Remove old language labels in EXT:setup

After removing features some language labels were left alone.
condensedMode - https://forge.typo3.org/issues/24585
noMenuMode -  http://review.typo3.org/34399
showFieldHelp - https://forge.typo3.org/issues/24623
enableFlashUploader - https://review.typo3.org/#/c/19146/2
disableCMlayers - http://review.typo3.org/7334
edit_wideDocument - https://review.typo3.org/28769


Resolves: #78735
Releases: master
Change-Id: I11676633d3ba14b4063b2a365dd3f88d6377b091
Reviewed-on: https://review.typo3.org/50768


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Markus Sommer <markussom@posteo.de>
Tested-by: Markus Sommer <markussom@posteo.de>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>