Revert 7a0da8894348, "scudo: Support memory tagging in the secondary allocator."

We measured a 2.5 seconds (17.5%) regression in Android boot time
performance with this change.

GitOrigin-RevId: 9678b07e42ee4cfabbc7405441ccc8ac493df4b5
Change-Id: I3f21260261a01cad1e920ff1a408704ed1b822b3
(cherry picked from commit 1bc3a8d33d70870148c95367d9d1263fe43318c5)
12 files changed