iris: Inline iris_sample_with_depth_aux() into the remaining caller.

This is really only used in one place now and the complex "level has
HiZ?" checks were dropped two patches ago, making this function a
mere one line of code plus some redundant switches.

Suggested by Nanley Chery.
35 jobs for !4674 with iris-hiz-3 in 24 seconds (queued for 1 second)
latest detached
Status Job ID Name Coverage
  Container
manual arm_build #5524692
aarch64 manual
manual arm_test-base #5524693
manual
passed git_archive #5524694

00:00:15

manual x86_build-base #5524689
manual
manual x86_build_old #5524691
manual
manual x86_test-base #5524690
manual
 
  Container 2
created android_build #5524702
created arm64_test #5524705
created i386_build #5524699
created kernel+rootfs_amd64 #5524695
created kernel+rootfs_arm64 #5524696
aarch64
created kernel+rootfs_armhf #5524697
aarch64
created ppc64el_build #5524700
created s390x_build #5524701
created x86_build #5524698
created x86_test-gl #5524703
created x86_test-vk #5524704
 
  Sanity
passed check mr #5524706

00:00:09

 
  Meson X86 64
created meson-clang #5524712
created meson-classic #5524711
created meson-clover #5524713
created meson-clover-testing #5524708
created meson-gallium #5524709
created meson-release #5524710
created meson-testing #5524707
created meson-vulkan #5524714
 
  Scons
created scons-win64 #5524715
allowed to fail
 
  Meson Misc
created meson-android #5524716
created meson-arm64 #5524718
aarch64
created meson-arm64-build-test #5524719
aarch64
created meson-armhf #5524717
aarch64
created meson-i386 #5524720
created meson-mingw32-x86_64 #5524723
created meson-ppc64el #5524722
kvm
created meson-s390x #5524721
kvm