Remove const from `const int loops`.

bench/InterpBench.cpp

Index: bench/InterpBench.cpp
diff --git a/bench/InterpBench.cpp b/bench/InterpBench.cpp
index 8171131ebc3bc084feb26889092fb1985167d28e..b95f57d50df99aa100668e6069a88c8c42f2c47d 100644
--- a/bench/InterpBench.cpp
+++ b/bench/InterpBench.cpp
@@ -42,7 +42,7 @@ protected:
         return fName.c_str();
     }
 
-    void onDraw(const int loops, SkCanvas*) override {
+    void onDraw(int loops, SkCanvas*) override {
         int n = loops * this->mulLoopCount();
         for (int i = 0; i < n; i++) {
             this->performTest(fDst, fFx, fDx, kBuffer);