Revert "enable midi -> audio (#83)" (#84)

This reverts commit 4c07da9.

fluidsynth.py

@@ -618,16 +618,6 @@ class fluid_midi_router_t(Structure):
                                     ('rule', c_void_p, 1),
                                     ('type', c_int, 1))
 
-# fluid file renderer
-new_fluid_file_renderer = cfunc('new_fluid_file_renderer', c_void_p,
-                                ('synth', c_void_p, 1))
-
-delete_fluid_file_renderer = cfunc('delete_fluid_file_renderer', None,
-                                   ('renderer', c_void_p, 1))
-
-fluid_file_renderer_process_block = cfunc('fluid_file_renderer_process_block', c_int,
-                                          ('render', c_void_p, 1))
-
 # fluidsynth 2.x
 new_fluid_cmd_handler=cfunc('new_fluid_cmd_handler', c_void_p,
                                ('synth', c_void_p, 1),
@@ -703,8 +693,6 @@ def __init__(self, gain=0.2, samplerate=44100, channels=256, **kwargs):
         self.midi_driver = None
         self.router = None
         self.custom_router_callback = None
-    def __del__(self):
-        self.delete()
     def setting(self, opt, val):
         """change an arbitrary synth setting, type-smart"""
         if isinstance(val, (str, bytes)):
@@ -1082,19 +1070,7 @@ def play_midi_stop(self):
 
     def player_set_tempo(self, tempo_type, tempo):
         return fluid_player_set_tempo(self.player, tempo_type, tempo)
-
-    def midi2audio(self, midifile, audiofile = "output.wav"):
-        """Convert a midi file to an audio file"""
-        self.setting("audio.file.name", audiofile)
-        player = new_fluid_player(self.synth)
-        fluid_player_add(player, midifile.encode())
-        fluid_player_play(player)
-        renderer = new_fluid_file_renderer(self.synth)
-        while(fluid_player_get_status(player) == FLUID_PLAYER_PLAYING):
-            if(fluid_file_renderer_process_block(renderer) != FLUID_OK):
-                break
-        delete_fluid_file_renderer(renderer)
-        delete_fluid_player(player)
+
 
 
 class Sequencer: