Revert "Update BootReceiver.java"

This reverts commit fdcad0deeed9902e2001608276124669472bee9c.
Revert "Slimtroll: Clear All Apps button added in Recent Panel (1/2)"

This reverts commit fb085fe89f50f81aea4b3e1fd0f9350d86547b2b.
Revert "Revert "Clear All Apps button added in Recent Panel (1/2)""

This reverts commit 36034b2ef04678fd1a4a2a99169ff0c27e3080aa.