player_control: eliminate PLAYER_COMMAND_PLAY

src/player_control.c

@@ -77,8 +77,7 @@ pc_play(struct song *song)
 
 	assert(pc.next_song == NULL);
 
-	pc.next_song = song;
-	player_command(PLAYER_COMMAND_PLAY);
+	pc_enqueue_song(song);
 
 	assert(pc.next_song == NULL);
 

src/player_control.h

@@ -35,7 +35,6 @@ enum player_command {
 	PLAYER_COMMAND_NONE = 0,
 	PLAYER_COMMAND_EXIT,
 	PLAYER_COMMAND_STOP,
-	PLAYER_COMMAND_PLAY,
 	PLAYER_COMMAND_PAUSE,
 	PLAYER_COMMAND_SEEK,
 	PLAYER_COMMAND_CLOSE_AUDIO,

src/player_thread.c

@@ -347,7 +347,6 @@ static void player_process_command(struct player *player)
 {
 	switch (pc.command) {
 	case PLAYER_COMMAND_NONE:
-	case PLAYER_COMMAND_PLAY:
 	case PLAYER_COMMAND_STOP:
 	case PLAYER_COMMAND_EXIT:
 	case PLAYER_COMMAND_CLOSE_AUDIO:
@@ -773,7 +772,6 @@ static gpointer player_task(G_GNUC_UNUSED gpointer arg)
 
 	while (1) {
 		switch (pc.command) {
-		case PLAYER_COMMAND_PLAY:
 		case PLAYER_COMMAND_QUEUE:
 			assert(pc.next_song != NULL);