Improved code based on CppCheck results

None of this should change the engine's behavior, but the code is better
this way.


Former-commit-id: 0127769848fc1f7fc8006ee607985cfc0ead2965

src/Nazara/Audio/Music.cpp

@@ -23,7 +23,6 @@ struct NzMusicImpl
 	std::vector<nzInt16> chunkSamples;
 	NzThread thread;
 	bool loop = false;
-	bool paused = false;
 	bool streaming = false;
 	unsigned int sampleRate;
 };