Comment out CINDEX_DEPRECATED instead with explanation

Author: RKSimon

clang/include/clang-c/Index.h

@@ -6953,6 +6953,7 @@ clang_getCursorUnaryOperatorKind(CXCursor cursor);
  * @}
  */
 
+/* CINDEX_DEPRECATED - disable this to appease MSVC deprecation diagnostic warnings */
 typedef void *CXRemapping;
 
 CINDEX_DEPRECATED CINDEX_LINKAGE CXRemapping clang_getRemappings(const char *);