Shut up some Mac (xcode 3) warnings

Review URL: http://codereview.appspot.com/6503053/



git-svn-id: http://skia.googlecode.com/svn/trunk@5402 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/gradients/SkTwoPointConicalGradient.cpp b/src/effects/gradients/SkTwoPointConicalGradient.cpp
index c84989b..38733f3 100644
--- a/src/effects/gradients/SkTwoPointConicalGradient.cpp
+++ b/src/effects/gradients/SkTwoPointConicalGradient.cpp
@@ -188,7 +188,7 @@
     SkPMColor* SK_RESTRICT dstC = dstCParam;
 
     SkMatrix::MapXYProc dstProc = fDstToIndexProc;
-    TileProc            proc = fTileProc;
+
     const SkPMColor* SK_RESTRICT cache = this->getCache32();
 
     TwoPointRadialProc shadeProc = twopoint_repeat;
@@ -254,8 +254,6 @@
 SkShader::BitmapType SkTwoPointConicalGradient::asABitmap(
     SkBitmap* bitmap, SkMatrix* matrix, SkShader::TileMode* xy) const {
     SkPoint diff = fCenter2 - fCenter1;
-    SkScalar diffRadius = fRadius2 - fRadius1;
-    SkScalar startRadius = fRadius1;
     SkScalar diffLen = 0;
 
     if (bitmap) {