[TASK] Make t3skin frame dimension overrides default

The TBE_STYLES settings in t3skin are not needed since
the default should be actually the whole backend setting.

The patch changes the settings accordingly.

Resolves: #72068
Releases: master
Change-Id: I7de0c3d8da0c3bdc9f58b56960a073193832ce0e
Reviewed-on: https://review.typo3.org/45136


Reviewed-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Tested-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>