Subtitles: Yet another state calculation fix.

0925cc0 doesn't count AV subtitles as
"text" subtitles, but it should.

(cherry picked from commit 017cc5c)

Author: stichnot

mythtv/libs/libmythtv/mythplayer.h

@@ -78,7 +78,6 @@ enum
     kDisplayAllCaptions         = 0x0FF,
     kDisplayTeletextMenu        = 0x100,
     kDisplayAllTextCaptions     = ~kDisplayDVDButton &
-                                  ~kDisplayAVSubtitle &
                                    kDisplayAllCaptions,
 };