Remove version checks for _MSC_VER < 1800 (msvs2013).

include/gpu/GrConfig.h

Index: include/gpu/GrConfig.h
diff --git a/include/gpu/GrConfig.h b/include/gpu/GrConfig.h
index bb653b6a7d46f4e01dd45c7faf1fc341d403be0a..8e0efbd4725aeac0402a4273b972ff0945e8e309 100644
--- a/include/gpu/GrConfig.h
+++ b/include/gpu/GrConfig.h
@@ -106,7 +106,7 @@ typedef unsigned __int64 uint64_t;
  *  particular compiler.
  *  To insert compiler warnings use "#pragma message GR_WARN(<string>)"
  */
-#if defined(_MSC_VER) && _MSC_VER
+#if defined(_MSC_VER)
     #define GR_WARN(MSG) (GR_FILE_AND_LINE_STR "WARNING: " MSG)
 #else//__GNUC__ - may need other defines for different compilers
     #define GR_WARN(MSG) ("WARNING: " MSG)
@@ -171,19 +171,7 @@ typedef unsigned __int64 uint64_t;
  *  it may print the message in the compiler log. Obviously, the condition must
  *  be evaluatable at compile time.
  */
-// VS 2010 and GCC compiled with c++0x or gnu++0x support the new
-// static_assert.
-#if !defined(GR_STATIC_ASSERT)
-    #if (defined(_MSC_VER) && _MSC_VER >= 1600) || (defined(__GXX_EXPERIMENTAL_CXX0X__) && __GXX_EXPERIMENTAL_CXX0X__)
-        #define GR_STATIC_ASSERT(CONDITION) static_assert(CONDITION, "bug")
-    #else
-        template <bool> class GR_STATIC_ASSERT_FAILURE;
-        template <> class GR_STATIC_ASSERT_FAILURE<true> {};
-        #define GR_STATIC_ASSERT(CONDITION) \
-            enum {GR_CONCAT(X,__LINE__) = \
-            sizeof(GR_STATIC_ASSERT_FAILURE<CONDITION>)}
-    #endif
-#endif
+#define GR_STATIC_ASSERT(CONDITION) static_assert(CONDITION, "bug")
 
 /**
  * Set to 1 to enable pixel local storage path rendering on supported devices.