Revert of Analytic AntiAlias for Convex Shapes

src/core/SkBlitter.cpp

Index: src/core/SkBlitter.cpp
diff --git a/src/core/SkBlitter.cpp b/src/core/SkBlitter.cpp
index b57bd43ad0a4ebe7bd123a03f4afadda235e7f3e..db9fcda93b19fc3b364859b0727de89e3b55888e 100644
--- a/src/core/SkBlitter.cpp
+++ b/src/core/SkBlitter.cpp
@@ -71,22 +71,17 @@
     }
 }
 
-/// Default implementation doesn't check for easy optimizations
-/// such as alpha == 255; also uses blitV(), which some subclasses
+/// Default implementation doesn't check for any easy optimizations
+/// such as alpha == 0 or 255; also uses blitV(), which some subclasses
 /// may not support.
 void SkBlitter::blitAntiRect(int x, int y, int width, int height,
                              SkAlpha leftAlpha, SkAlpha rightAlpha) {
-    if (leftAlpha > 0) { // we may send in x = -1 with leftAlpha = 0
-        this->blitV(x, y, height, leftAlpha);
-    }
-    x++;
+    this->blitV(x++, y, height, leftAlpha);
     if (width > 0) {
         this->blitRect(x, y, width, height);
         x += width;
     }
-    if (rightAlpha > 0) {
-        this->blitV(x, y, height, rightAlpha);
-    }
+    this->blitV(x, y, height, rightAlpha);
 }
 
 //////////////////////////////////////////////////////////////////////////////