android: remove unused screenSize (Fennec import)

Change-Id: I0b8d1b29ab3219bc75de6c087e410523c18dbeef

android/experimental/LOAndroid3/src/java/org/mozilla/gecko/gfx/Layer.java

@@ -157,17 +157,15 @@ public abstract class Layer {
     public static class RenderContext {
         public final RectF viewport;
         public final RectF pageRect;
-        public final IntSize screenSize;
         public final float zoomFactor;
         public final int positionHandle;
         public final int textureHandle;
         public final FloatBuffer coordBuffer;
 
-        public RenderContext(RectF aViewport, RectF aPageRect, IntSize aScreenSize, float aZoomFactor,
+        public RenderContext(RectF aViewport, RectF aPageRect, float aZoomFactor,
                              int aPositionHandle, int aTextureHandle, FloatBuffer aCoordBuffer) {
             viewport = aViewport;
             pageRect = aPageRect;
-            screenSize = aScreenSize;
             zoomFactor = aZoomFactor;
             positionHandle = aPositionHandle;
             textureHandle = aTextureHandle;

android/experimental/LOAndroid3/src/java/org/mozilla/gecko/gfx/LayerRenderer.java

@@ -319,7 +319,7 @@ public class LayerRenderer implements GLSurfaceView.Renderer {
     }
 
     private RenderContext createContext(RectF viewport, RectF pageRect, float zoomFactor) {
-        return new RenderContext(viewport, pageRect, new IntSize(mSurfaceWidth, mSurfaceHeight), zoomFactor, mPositionHandle, mTextureHandle,
+        return new RenderContext(viewport, pageRect, zoomFactor, mPositionHandle, mTextureHandle,
                                  mCoordBuffer);
     }