movies: remove unused fields from Vorbis and Opus audio cursors

panda/src/movies/opusAudioCursor.h

@@ -47,14 +47,6 @@ protected:
   OggOpusFile *_op;
 
   int _link;
-  double _byte_rate;
-  int _block_align;
-  int _bytes_per_sample;
-  bool _is_float;
-
-  std::streampos _data_start;
-  std::streampos _data_pos;
-  size_t _data_size;
 
 public:
   static TypeHandle get_class_type() {

panda/src/movies/vorbisAudioCursor.h

@@ -50,16 +50,7 @@ protected:
 #ifndef CPPPARSER
   OggVorbis_File _ov;
 #endif
-
   int _bitstream;
-  double _byte_rate;
-  int _block_align;
-  int _bytes_per_sample;
-  bool _is_float;
-
-  std::streampos _data_start;
-  std::streampos _data_pos;
-  size_t _data_size;
 
 public:
   static TypeHandle get_class_type() {