[BUGFIX] Remove static template of ext:documentation

The static template configuration is not needed and current
constant definitions are broken.

Resolves: #52411
Releases: 6.2
Change-Id: Ie1aecd9dd5d0be4d4d8281abb74bcc6937b62ca4
Reviewed-on: https://review.typo3.org/24185
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn