[TASK] Remove old class files from ext:recycler

Change-Id: I5d2233c5eb0860740e1858bf2f96a919fee26e5e
Resolves: #55804
Related: #47756
Releases: 6.2
Reviewed-on: https://review.typo3.org/27505
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Oliver Klee
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring