modules: remove unneeded signal.h include

12 jobs for !9 with signal in 66 minutes and 43 seconds (queued for 3 seconds)
detached
Status Job ID Name Coverage
  Build
passed #387826
amd64 docker
android-arm

00:06:24

passed #387827
amd64 docker
android-arm64

00:06:22

passed #387828
amd64 docker
android-x86

00:06:37

passed #387829
amd64 docker
android-x86_64

00:05:36

passed #387821
amd64 docker
debian

00:06:58

passed #387825
macos
ios-arm64

00:16:41

passed #387824
macos
macos

00:16:14

passed #387823
amd64 docker
raspbian-arm

00:06:38

passed #387822
amd64 docker
snap

00:55:25

passed #387818
amd64 docker
win32

00:08:18

passed #387819
amd64 docker
win64

00:09:19

passed #387820
amd64 docker
win64-llvm

00:07:46