Revert "Halo: tablet mode support"

This reverts commit c73956c9323b67c04e81ca9ae4727fa6c402994f.
Revert "Clean up Halo stuff."

This reverts commit 99f6f24a5bfd7b8dd96daa54a5c3a6afe3be042a.
Revert "HALO: make a trusted overlay"

This reverts commit edc49db467362de902930ccb5f1b59799f5209a0.
Revert "HALO cleanup & clearall-nap"

This reverts commit e38e50454b3aa4f5f43867c0625a81422497e45a.
Revert "Better strings"

This reverts commit a4bba83093202363dd870128036f7fb4f4a507b8.
Revert "HALO clearall-fix + dismiss icon (READY, BUT NEW STYLE IS XHDPI ONLY!)"

This reverts commit d06ec2c49b3709e678a41275b53ae050a0081845.
Revert "HALO clearall/silence (STILL NOT READY FOR RELEASE)"

This reverts commit 92c265cb7113b4d7b68aaa600ced770c9f4b6b2e.
Revert "HALO new vertical gestures (NOT READY FOR RELEASE)"

This reverts commit a5d9cdfc68932982a11f0280a7f40ad2a8da2ac0.
Revert "HALO hide bugfix, smaller numberbatch still"

This reverts commit abf3f133b8ea5165e4f0bd0cd684dadad85fbe49.
Revert "HALO cleanup & better drawables"

This reverts commit 702316d3401c2e110fa9eececf4b49088a3dc17d.
Revert "HALO hiddenstate-fix + smaller numberbatch"

This reverts commit 71d51ba5ff7292b928afb5ef471cdb1737f4bcd2.
Revert "Finish the floating activity again"

This reverts commit 1c089ffa2a57b210437ac5d9b9991670a6564d2b.
Revert "HALO Style revamp"

This reverts commit e7914ed16eb67d474e0abb480863d4935eecfca5.