Revert "netfilter: have ip*t REJECT set the sock err when an icmp is to be sent"

This reverts commit 6f489c42a92e0e33d4257017d6fd4a3e79f75f79.

Bug: 28719525
Change-Id: I77707cc93b3c5f0339e6bce36734027586c639d3
4 files changed