fix "unreachable code" warning

There is unreachable code at several positions, e.g. after an
#if/#end, or after an endless loop.  Remove that.

git-svn-id: https://svn.musicpd.org/mpd/trunk@7197 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/charConv.c

@@ -88,9 +88,9 @@ int setCharSetConversion(const char *to, const char *from)
 	char_conv_use_iconv = 1;
 
 	return 0;
-#endif
-
+#else
 	return -1;
+#endif
 }
 
 char *char_conv_str(char *dest, const char *string)

src/player.c

@@ -161,8 +161,6 @@ static int playerInit(void)
 			} else
 				my_usleep(10000);
 		}
-
-		exit(EXIT_SUCCESS);
 	} 
 	else if (player_pid < 0) 
 	{

src/playlist.c

@@ -973,8 +973,6 @@ static int currentSongInPlaylist(int fd)
 		return playPlaylistOrderNumber(fd, playlist.current);
 	} else
 		return stopPlaylist(fd);
-
-	return 0;
 }
 
 int nextSongInPlaylist(int fd)
@@ -996,8 +994,6 @@ int nextSongInPlaylist(int fd)
 		incrPlaylistCurrent();
 		return stopPlaylist(fd);
 	}
-
-	return 0;
 }
 
 void playPlaylistIfPlayerStopped(void)
@@ -1270,8 +1266,6 @@ int previousSongInPlaylist(int fd)
 			return playPlaylistOrderNumber(fd, playlist.current);
 		}
 	}
-
-	return 0;
 }
 
 int shufflePlaylist(int fd)

src/utils.c

@@ -76,8 +76,9 @@ int ipv6Supported(void)
 		return 0;
 	close(s);
 	return 1;
-#endif
+#else
 	return 0;
+#endif
 }
 
 char *appendToString(char *dest, const char *src)

src/volume.c

@@ -510,7 +510,6 @@ int changeVolumeLevel(int fd, int change, int rel)
 		return changeSoftwareVolume(fd, change, rel);
 	default:
 		return 0;
-		break;
 	}
 }