Revert "Fix slim recents popup"

This reverts commit e57b9b92c3c0fe426c3ec60069d0b3613b68f90f.
remove floating window from slim recent
SlimRecents: development shortcut

https://github.com/CyanogenMod/android_frameworks_base/commit/016664aa129ff00b556a6c56e06f474593d1a04f

Change-Id: Id813e25cbe4c414bf039385a710775e9b30b7162
SlimRecents: add floating window menu

Change-Id: I63894fb8551b881c45c991bc30353b3dc4f3e43c