Revert "arm64: probes: Fix uprobes for big-endian kernels"

This reverts commit cf60d19d which is
commit 13f8f1e0 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I18b6cfe76bcad5a793a3acadeb217a01149a5337
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>