remove unnecessary comparison

10 jobs for 171-lgtm-issues in 7 minutes and 8 seconds (queued for 7 seconds)
Status Job ID Name Coverage
  Precheck
passed #8840
docker linux
precheck:debian:sid:amd64

00:00:11

 
  Build
passed #8841
docker linux
build:clang:debian:sid:amd64

00:02:01

passed #8843
docker linux
build:clang:debian:sid:i386

00:02:09

passed #8842
docker linux
build:debian:sid:amd64

00:02:00

passed #8844
docker linux
build:debian:sid:i386

00:02:07

 
  Test
passed #8848
docker linux
systemtest:debian:sid:amd64

00:04:46

passed #8849
docker linux
systemtest:debian:sid:i386

00:04:46

passed #8846
docker linux
unittest:clang:debian:sid:amd64

00:00:53

passed #8845
docker linux
unittest:debian:sid:amd64

00:00:48

passed #8847
docker linux
unittest:debian:sid:i386

00:00:52