Revert "arm64: errata: Mitigate Ampere1 erratum AC03_CPU_38 at stage-2"

This reverts commit cde7f2fd which is
commit 6df696cd upstream.

It breaks the Android abi and isn't really needed for Android systems.
If it is needed in the future, it can come back in an ABI-safe way.

Bug: 161946584
Change-Id: I5134a2ccd9bd11cb7fbf3e5c6d8a0f2b8ee924d3
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>