Remove Skia RenderPipeline saveLayer logic for software layers.

Test: CtsUiRenderingTestCases:LayerTests
Bug: 72052698
Change-Id: Ief845c409755e6bc61849a6ab3506ef60161f231
diff --git a/libs/hwui/RenderProperties.h b/libs/hwui/RenderProperties.h
index 55f4d89..0742de9 100644
--- a/libs/hwui/RenderProperties.h
+++ b/libs/hwui/RenderProperties.h
@@ -56,11 +56,10 @@
 // Keep in sync with View.java:LAYER_TYPE_*
 enum class LayerType {
     None = 0,
-    // Although we cannot build the software layer directly (must be done at
-    // record time), this information is used when applying alpha.
+    // We cannot build the software layer directly (must be done at record time) and all management
+    // of software layers is handled in Java.
     Software = 1,
     RenderLayer = 2,
-    // TODO: LayerTypeSurfaceTexture? Maybe?
 };
 
 enum ClippingFlags {