remove uneeded SK_API declaration.

src/core/SkPath.cpp

Index: src/core/SkPath.cpp
diff --git a/src/core/SkPath.cpp b/src/core/SkPath.cpp
index f5b8bd5e79a907049b3e22065579645f36582e79..97204bba01334d8b01331ba14c6be738447f355a 100644
--- a/src/core/SkPath.cpp
+++ b/src/core/SkPath.cpp
@@ -226,7 +226,7 @@ void SkPath::copyFields(const SkPath& that) {
     fIsOval          = that.fIsOval;
 }
 
-SK_API bool operator==(const SkPath& a, const SkPath& b) {
+bool operator==(const SkPath& a, const SkPath& b) {
     // note: don't need to look at isConvex or bounds, since just comparing the
     // raw data is sufficient.