Fixed clang warnings

src/osg/Identifier.cpp

@@ -123,4 +123,4 @@ Identifier* osg::Identifier::get(osg::Referenced* first, osg::Referenced* second
     return get("", 0, first, second);
 }
 
-}
+}

src/osgPlugins/ffmpeg/FFmpegClocks.cpp

@@ -15,9 +15,6 @@ namespace osgFFmpeg {
 namespace
 {
 
-    const double AV_SYNC_THRESHOLD = 0.01;
-    const double AV_NOSYNC_THRESHOLD = 10.0;
-
     inline double clamp(const double value, const double min, const double max)
     {
         return (std::min)((std::max)(value, min), max);

src/osgWrappers/serializers/osg/PrimitiveSet.cpp

@@ -163,4 +163,4 @@ REGISTER_OBJECT_WRAPPER( MultiDrawArrays,
 }
 
 }
-#endif
+#endif