build/drm: Drop legacy build option

Complete what commit b0334d9d ("build/drm: Make drm-renderers option an array") started.

Signed-off-by: Rob Clark robdclark@chromium.org

meson.build

@@ -285,12 +285,12 @@ have_vla = not cc.has_header_symbol('stdlib.h', '__STDC_NO_VLA__')
 drm_renderers = get_option('drm-renderers')
 
 with_drm_msm = (not ['arm'].contains(target_machine.cpu_family())
-            and (get_option('drm-msm-experimental') or drm_renderers.contains('msm')))
+            and drm_renderers.contains('msm'))
 if with_drm_msm
   conf_data.set('ENABLE_DRM_MSM', 1)
 endif
 
-with_drm_amdgpu = have_vla and (get_option('drm-amdgpu-experimental') or drm_renderers.contains('amdgpu-experimental'))
+with_drm_amdgpu = have_vla and drm_renderers.contains('amdgpu-experimental')
 if with_drm_amdgpu
   conf_data.set('ENABLE_DRM', 1)
   conf_data.set('ENABLE_DRM_AMDGPU', 1)