[TASK] EXT:filelist: Use new modal confirmation dialog for file delete

Resolves: #72332
Releases: master, 7.6
Change-Id: I5d58bf432f33917705398322d879942b06840176
Reviewed-on: https://review.typo3.org/45369


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Tested-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>