[BUGFIX] Remove css_styled_content as part of the factory default

Resolves: #73558
Releases: master, 7.6
Change-Id: Iaf7bdf486a0b0229233181cca8b4c7ef68bf9bbc
Reviewed-on: https://review.typo3.org/46851


Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>