Revert "[TASK] Reduce file size of core images"

This patch changes the file permissions, so we need to work
some more on it.

This reverts commit 03cf03b28f7f37cab14f2467f6ad1c3134ae5fa4

Change-Id: I21343c8273db1e5173d6b8211cc2fed510e9810e
Reviewed-on: https://review.typo3.org/29828
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring