Revert "Fix Slims recents floating mode"

This reverts commit ba810156128d21b4d3ed2ebe6c1a06bbada8a37a.
Revert "SlimRecents: add floating window menu"

This reverts commit 694ae98fa10131205700e8e9a797a21bb4285d3f.
Revert "SlimRecents: development shortcut"

This reverts commit 45be2edec4528d1ce2e8d1319052e484005bf4b0.