Drop ignore on test_audio_cvt

Now that this should be fixed upstream.

Author: waych

src/sdl2/audio.rs

@@ -1071,8 +1071,6 @@ mod test {
     use super::{AudioCVT, AudioFormat};
 
     #[test]
-    // Ignored temporarily to isolate cause of HEAP corruption on Windows release dynamic build.
-    #[ignore]
     fn test_audio_cvt() {
         use std::iter::repeat;