[BUGFIX] Do not try to delete already remove file

When using the FAL API to add a file to a folder,
the local file is deleted by default already.

Thus the attempt to remove the file again results in a warning.

Therefore remove the obsolete unlink to avoid the warning.

Resolves: #87192
Releases: 8.7, 9.5, master
Change-Id: I23f3192e2760cd705429337464c8a5506cf41205
Reviewed-on: https://review.typo3.org/59186


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Guido Schmechel <guido.schmechel@brandung.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>