[TASK] Remove changelog files from TYPO3 CMS 7

Resolves: #72573
Releases: master
Change-Id: If76f4dc4c5350869e0323ac8f3ee6b06535d83ad
Reviewed-on: https://review.typo3.org/45651


Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Jan Helke <typo3@helke.de>
Tested-by: Jan Helke <typo3@helke.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>