Revert "HID: core: store the unique system identifier in hid_device"

This reverts commit 2f0ea5e0 which is
commit 1e839143 upstream.

It breaks the current Android ABI, and if needed, can be brought back in
an abi-safe way in the future.

Bug: 161946584
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Idfcb1fccdf3e86ebd34acc41041fe0893ddb0855