drm_hwcomposer: Remove useless setters from DrmHwcLayer

SetDisplayFrame and SetSourceCrop methods are unnecessary in
the DrmHwcLayer structure without any private members.

Signed-off-by: Roman Kovalivskyi <roman.kovalivskyi@globallogic.com>
Signed-off-by: Matvii Zorin <matvii.zorin@globallogic.com>
diff --git a/DrmHwcTwo.cpp b/DrmHwcTwo.cpp
index 4cf7a26..8b2abfd 100644
--- a/DrmHwcTwo.cpp
+++ b/DrmHwcTwo.cpp
@@ -1149,9 +1149,9 @@
   layer->sf_handle = buffer_;
   layer->acquire_fence = acquire_fence_.Release();
   layer->release_fence = std::move(release_fence);
-  layer->SetDisplayFrame(display_frame_);
+  layer->display_frame = display_frame_;
   layer->alpha = lround(65535.0F * alpha_);
-  layer->SetSourceCrop(source_crop_);
+  layer->source_crop = source_crop_;
   layer->SetTransform(static_cast<int32_t>(transform_));
   layer->dataspace = dataspace_;
 }