Revert "Slim Recents: (add support for floating window)"

This reverts commit a4e2320dec197e9a8a89f528023447729723696c.
SlimRecents: development shortcut

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

Change-Id: Id813e25cbe4c414bf039385a710775e9b30b7162
SlimRecents: add floating window menu

Change-Id: I63894fb8551b881c45c991bc30353b3dc4f3e43c

Conflicts:
	packages/SystemUI/res/values/cm_strings.xml
SlimRecents: fix derp

Change-Id: I97c99b659500ded660749973a9cf7e971608658e