Revert "arm64:uprobe fix the uprobe SWBP_INSN in big-endian"

This reverts commit acfb32d4 which is
commit 60f07e22 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: I00e00f4dcf184486802e3c07233fa4d3d85c47bb
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>