[subtitles] removed only-sub option (--skip-download achieves the same

functionality)

test/parameters.json

@@ -38,7 +38,6 @@
     "writedescription": false, 
     "writeinfojson": true, 
     "writesubtitles": false,
-    "onlysubtitles": false,
     "allsubtitles": false,
     "listssubtitles": false
 }

test/test_dailymotion_subtitles.py

@@ -46,14 +46,6 @@ class TestDailymotionSubtitles(unittest.TestCase):
         info_dict = IE.extract(TEST_URL)
         sub = info_dict[0]['subtitles']['fr']
         self.assertEqual(md5(sub), '594564ec7d588942e384e920e5341792')
-    def test_onlysubtitles(self):
-        DL = FakeYDL()
-        DL.params['writesubtitles'] = True
-        DL.params['onlysubtitles'] = True
-        IE = DailymotionIE(DL)
-        info_dict = IE.extract(TEST_URL)
-        sub = info_dict[0]['subtitles']['en']
-        self.assertEqual(md5(sub), '976553874490cba125086bbfea3ff76f')
     def test_allsubtitles(self):
         DL = FakeYDL()
         DL.params['allsubtitles'] = True

test/test_youtube_subtitles.py

@@ -45,14 +45,6 @@ class TestYoutubeSubtitles(unittest.TestCase):
         info_dict = IE.extract('QRS8MkLhQmM')
         sub = info_dict[0]['subtitles']['it']
         self.assertEqual(md5(sub), '164a51f16f260476a05b50fe4c2f161d')
-    def test_youtube_onlysubtitles(self):
-        DL = FakeYDL()
-        DL.params['writesubtitles'] = True
-        DL.params['onlysubtitles'] = True
-        IE = YoutubeIE(DL)
-        info_dict = IE.extract('QRS8MkLhQmM')
-        sub = info_dict[0]['subtitles']['en']
-        self.assertEqual(md5(sub), '4cd9278a35ba2305f47354ee13472260')
     def test_youtube_allsubtitles(self):
         DL = FakeYDL()
         DL.params['allsubtitles'] = True

youtube_dl/__init__.py

@@ -193,9 +193,6 @@ def parseOpts(overrideArguments=None):
     subtitles.add_option('--write-auto-sub', '--write-automatic-sub',
             action='store_true', dest='writeautomaticsub',
             help='write automatic subtitle file (youtube only)', default=False)
-    subtitles.add_option('--only-sub',
-            action='store_true', dest='skip_download',
-            help='[deprecated] alias of --skip-download', default=False)
     subtitles.add_option('--all-subs',
             action='store_true', dest='allsubtitles',
             help='downloads all the available subtitles of the video', default=False)