remove ISC_NET_RECVOVERFLOW, as it appears to be unused

10 jobs for 238-remove-recvoverflow in 8 minutes and 16 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Precheck
passed #11935
amd64 docker linux
precheck:debian:sid:amd64

00:00:11

 
  Build
passed #11936
amd64 docker linux
build:clang:debian:sid:amd64

00:03:05

passed #11938
i386 docker linux
build:clang:debian:sid:i386

00:03:23

passed #11937
amd64 docker linux
build:debian:sid:amd64

00:02:58

passed #11939
i386 docker linux
build:debian:sid:i386

00:03:11

 
  Test
passed #11943
amd64 docker linux
systemtest:debian:sid:amd64

00:04:39

passed #11944
i386 docker linux
systemtest:debian:sid:i386

00:04:39

passed #11941
amd64 docker linux
unittest:clang:debian:sid:amd64

00:00:53

passed #11940
amd64 docker linux
unittest:debian:sid:amd64

00:00:51

passed #11942
i386 docker linux
unittest:debian:sid:i386

00:00:49