Drop words-in-cue support from util.py (#397)

Signed-off-by: rany <rany2@riseup.net>

src/edge_tts/data_classes.py

@@ -85,7 +85,6 @@ class UtilArgs(argparse.Namespace):
     rate: str
     volume: str
     pitch: str
-    words_in_cue: int
     write_media: str
     write_subtitles: str
     proxy: str

src/edge_tts/util.py

@@ -107,12 +107,6 @@ async def amain() -> None:
     parser.add_argument("--rate", help="set TTS rate. Default +0%%.", default="+0%")
     parser.add_argument("--volume", help="set TTS volume. Default +0%%.", default="+0%")
     parser.add_argument("--pitch", help="set TTS pitch. Default +0Hz.", default="+0Hz")
-    parser.add_argument(
-        "--words-in-cue",
-        help="number of words in a subtitle cue. Default: 10.",
-        default=10,
-        type=int,
-    )
     parser.add_argument(
         "--write-media", help="send media output to file instead of stdout"
     )