daemon various nitpicks

- session: data length would be difference between start and end
  indices, but the function is unused so why even have it?
27 jobs for <span class="ref-name">tls-input-buffer</span> in 2 seconds (queued for 8 seconds)
Status Job ID Name Coverage
  Build
canceled #199122
docker linux amd64
build:clang:linux:amd64

00:00:02

canceled #199121
docker linux amd64
build:linux:amd64

00:00:02

canceled #199123
docker linux amd64 allowed to fail
srpm

00:00:02

 
  Test
canceled #199131
docker linux amd64
deckard:linux:amd64

canceled #199137
privileged
distro:epel-7

canceled #199136
privileged
distro:fedora-29

canceled #199130
docker
doc

canceled #199128
dind
docker:build

canceled #199129
docker linux amd64
installcheck:linux:amd64

canceled #199132
docker linux amd64
installcheck:valgrind:linux:amd64

canceled #199125
docker
lint:c

canceled #199126
docker
lint:clang-scan-build

canceled #199124
docker
lint:lua

canceled #199133
docker
osx:build

canceled #199135
docker linux amd64
respdiff:iter:udp:linux:amd64

canceled #199127
docker linux amd64
test:linux:amd64

canceled #199134
docker linux amd64
test:linux:amd64:valgrind

 
  Respdiff
canceled #199138
respdiff
respdiff:fwd-tls6-kresd.udp6

canceled #199139
respdiff
respdiff:fwd-udp6-kresd.udp6

canceled #199143
respdiff
respdiff:fwd-udp6-unbound.tcp6

canceled #199144
respdiff
respdiff:fwd-udp6-unbound.tls6

canceled #199142
respdiff
respdiff:fwd-udp6-unbound.udp6

canceled #199141
respdiff
respdiff:iter.tls6

canceled #199140
respdiff
respdiff:iter.udp6

canceled #199145
respdiff
resperf:fwd-tls6.udp-asan

canceled #199146
respdiff
resperf:fwd-udp6.udp-asan

canceled #199147
respdiff
resperf:iter.udp-asan