dotcase: remove torch functionality

* We wont likely have the cm torch stuff hacked back in now that
  google officially supports torch. Remove the torch stuff
  completely until/unless someone wants to fix it. (I was really
  contemplating removing it in kk anyway)

Change-Id: I74143535b60b9dfdba84637f65453cc67987bf93
sepolicy: add device specific-sepolicies

Change-Id: I1d099f482b157d9b04488048234e987ff488afcb
m8: selinux enforcing

Change-Id: Ic71a00f4466055f2a50e3cbc5634b0f796b1b38b