Frameworks/base: Unused parameters in hwui

Remove Clang cutout for unused parameters. Fix warnings.

Remove Clang cutout for deprecated Skia function usage. Has been
fixed in the L push.

Change-Id: I7ea073ff67127cc1e14e798b655e2c50615fe8e7
diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index b50a433..ab6588a 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -115,13 +115,13 @@
     setSurface(window);
 }
 
-void CanvasContext::pauseSurface(ANativeWindow* window) {
+void CanvasContext::pauseSurface(ANativeWindow* /* window */) {
     stopDrawing();
 }
 
 // TODO: don't pass viewport size, it's automatic via EGL
-void CanvasContext::setup(int width, int height, const Vector3& lightCenter, float lightRadius,
-        uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) {
+void CanvasContext::setup(int /* width */, int /* height */, const Vector3& lightCenter,
+        float lightRadius, uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) {
     if (!mCanvas) return;
     mCanvas->initLight(lightCenter, lightRadius, ambientShadowAlpha, spotShadowAlpha);
 }