SK_API in src/gpu cleanup

Change-Id: I14d6f7ef06c3cfcefd0813dd5013e4185b12d8cc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/235804
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrLegacyDirectContext.cpp b/src/gpu/GrLegacyDirectContext.cpp
index 932c241..ffd224d 100644
--- a/src/gpu/GrLegacyDirectContext.cpp
+++ b/src/gpu/GrLegacyDirectContext.cpp
@@ -33,7 +33,7 @@
 static const bool kDefaultReduceOpListSplitting = false;
 #endif
 
-class SK_API GrLegacyDirectContext : public GrContext {
+class GrLegacyDirectContext : public GrContext {
 public:
     GrLegacyDirectContext(GrBackendApi backend, const GrContextOptions& options)
             : INHERITED(backend, options)