Revert "BACKPORT: net: core: use listified Rx for GRO_NORMAL in napi_gro_receive()"

This reverts commit 2d5d56df.

Upstream reported that other fixes are required after this, and asked
why it is really needed here.

So get those answers first before accepting this patch, as we can not
take known-buggy patches into the tree.

Bug: 167477898
Cc: Hyunsoon Kim <h10.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: If795972972fdd17ad85a50f460ce79e00baffb54