Revert "[BUGFIX] Page module: Allow to paste in empty columns"


This patch introduces sever problems with DataHandler.

Change-Id: Ibd767523c287bd13ef86ce1f0751062a349b5f34
Releases: 6.2, 6.1
Related: #44002
Reviewed-on: https://review.typo3.org/25528
Reviewed-by: Markus Klein
Tested-by: Markus Klein