Tests : Unused parameters cleanup

I removed unused parameters in the tests wherever it was trivial to do so. I'm trying to get the easy ones out of the way before we get into more involved discussions around this.
Review URL: https://codereview.appspot.com/7394055

git-svn-id: http://skia.googlecode.com/svn/trunk@7891 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/DrawBitmapRectTest.cpp b/tests/DrawBitmapRectTest.cpp
index a56396c..ce33fcf 100644
--- a/tests/DrawBitmapRectTest.cpp
+++ b/tests/DrawBitmapRectTest.cpp
@@ -202,7 +202,7 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
-static void test_nan_antihair(skiatest::Reporter* reporter) {
+static void test_nan_antihair() {
     SkBitmap bm;
     bm.setConfig(SkBitmap::kARGB_8888_Config, 20, 20);
     bm.allocPixels();
@@ -264,7 +264,7 @@
     // ensure that we draw nothing if srcR does not intersect the bitmap
     REPORTER_ASSERT(reporter, check_for_all_zeros(dst));
 
-    test_nan_antihair(reporter);
+    test_nan_antihair();
     test_giantrepeat_crbug118018(reporter);
 
     test_treatAsSprite(reporter);