Revert "squisher: optimize /system/priv-app/ too"

This reverts commit cde131df823491c1cf0946507dfbadf093374619.
Revert "Add build date to the final zip after squisher"

This reverts commit e8a79ed8291759d58fa580aa478aca417fefab5a.
Revert "Add release tools"

This reverts commit ab8cc082ccb5b5411a5f755ede08c5508ccde38b.
Revert "squisher: optimize /system/priv-app/ too"

This reverts commit cde131df823491c1cf0946507dfbadf093374619.

Conflicts:

	tools/squisher
Revert "Revert "squisher: optimize /system/priv-app/ too""

This reverts commit 23df7af4340dea454fea8236d0fb337bbb9ee12e.
Revert "Revert "Add release tools""

This reverts commit 9d9f91adf8974da0a87a1c17ecbe34c7ed8ca648.
Revert "Revert "Revert "Add release tools"""

This reverts commit e6e4444291b870b440d5d24f9954f67fe81bcb01.