Revert "SlimRecents: add floating window menu"

This reverts commit 4e1ada039dddd8f22097a22cc33d244e7162cd3b.
SlimRecents: add floating window menu

Change-Id: I63894fb8551b881c45c991bc30353b3dc4f3e43c
SlimRecents: fix derp

Change-Id: I97c99b659500ded660749973a9cf7e971608658e
Fix Slim's recents floating mode

Took the idea from here: http://goo.gl/msdLYv

Change-Id: If0ec2f627b4abd9aec4fd13f7e289319d72e9146