Revert of Fix caching of sample locations

tools/gpu/GrTest.cpp

Index: tools/gpu/GrTest.cpp
diff --git a/tools/gpu/GrTest.cpp b/tools/gpu/GrTest.cpp
index 83ab4ea56f7d2a755f51992b81beb1f01dd4e6b2..97a9c49666f468dc17c6b98acf6f81a6b63d1c38 100644
--- a/tools/gpu/GrTest.cpp
+++ b/tools/gpu/GrTest.cpp
@@ -294,8 +294,10 @@
                        const SkIRect& srcRect,
                        const SkIPoint& dstPoint) override { return false; };
 
-    void onGetMultisampleSpecs(GrRenderTarget* rt, const GrStencilSettings&,
-                               int* effectiveSampleCnt, SamplePattern*) override {
+    void onGetMultisampleSpecs(GrRenderTarget* rt,
+                               const GrStencilSettings&,
+                               int* effectiveSampleCnt,
+                               SkAutoTDeleteArray<SkPoint>*) override {
         *effectiveSampleCnt = rt->desc().fSampleCnt;
     }