[BUGFIX] Fix miscellaneous palette in pages table

Removed unnecessary locallang reference for field "editlock"
in showitem string. This field has been moved to access tab.

Resolves: #83974
Branches: master, 8.7
Change-Id: I85201f552a67badca420386bb615bcc571a712db
Reviewed-on: https://review.typo3.org/55822


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Frans Saris <franssaris@gmail.com>
Tested-by: Frans Saris <franssaris@gmail.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>