Small clean up in loop filter code

7 jobs for master in 3 minutes and 17 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #3596
amd64 debian
build-debian

00:00:29

passed #3600
debian aarch64
build-debian-aarch64

00:01:17

passed #3601
debian clang5 aarch64
build-debian-aarch64-clang-5

00:00:47

passed #3597
amd64 debian
build-debian-static

00:00:29

passed #3602
macos
build-macos

00:00:24

passed #3598
win32
build-win32

00:00:27

passed #3599
win64
build-win64

00:00:32