Revert "SystemUI: update cm_strings.xml"

This reverts commit c5dce93112119cb2bd4f80618f8a9f21d1829a21.
Revert "SystemUI: update pixel_dimens.xml"

This reverts commit 44e26f056b619b25441a8e961f2b0be3ebe987ef.
Revert "SystemUI: update dimens.xml"

This reverts commit 9fd29f930a9c31424857ea83b1014552afecb695.
Revert "Frameworks: SlimPie (1/2)"

This reverts commit ee04c92970b76a46ff07528d049cf90382c3d703.