[TASK] Remove unused code in PageLayoutView.php

Changing the backend view to use grid elements caused an ancient
piece of code in PageLayoutView.php to be never executed. In fact
an if statement in PageLayoutController.php always evaluates to
"FALSE" which lets the code in PageLayoutView.php never get
executed.

Change-Id: I4f97690b54efeb7659f86f1ef15fa8603e97f69b
Resolves: #53898
Releases: master
Reviewed-on: http://review.typo3.org/25662


Reviewed-by: Jo Hasenau <info@cybercraft.de>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Frederic Gaus <frederic.gaus@flagbit.de>
Tested-by: Benjamin Mack <benni@typo3.org>
Reviewed-by: Benjamin Mack <benni@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>