remove unneeded headers

11 jobs for patch-srv in 41 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Prepare
passed #67387
linux
mat_common

00:00:10

passed #67389
linux
mat_irrklang

00:00:23

passed #67390
linux
mat_linux

00:00:35

passed #67391
linux
mat_macos

00:00:14

canceled #67388
linux
mat_submodules

00:00:41

passed #67392
linux
mat_windows

00:00:17

 
  Build
canceled #67394
linux
exec_linux

canceled #67396
macos-m1
exec_macos_platform_m1

canceled #67395
macos
exec_macos_platform_x86

canceled #67393
vs
exec_windows

 
  Combine
canceled #67397
macos
exec_macos