Disable the generic extractor entirely

It can be used for SSRF attacks even when redirects are disabled

patches/youtube-dl-disable-generic.diff

@@ -0,0 +1,12 @@
+diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
+index 18d8dbcd6..4d3edfac3 100644
+--- a/youtube_dl/extractor/__init__.py
++++ b/youtube_dl/extractor/__init__.py
+@@ -13,7 +13,6 @@ except ImportError:
+         for name, klass in globals().items()
+         if name.endswith('IE') and name != 'GenericIE'
+     ]
+-    _ALL_CLASSES.append(GenericIE)
+ 
+ 
+ def gen_extractor_classes():

patches/youtube-dl-redirect.diff

@@ -1,12 +0,0 @@
-diff --git a/youtube_dl/extractor/generic.py b/youtube_dl/extractor/generic.py
-index f99d887ca..749ed6ecf 100644
---- a/youtube_dl/extractor/generic.py
-+++ b/youtube_dl/extractor/generic.py
-@@ -2252,6 +2252,7 @@ class GenericIE(InfoExtractor):
- 
-     def report_following_redirect(self, new_url):
-         """Report information extraction."""
-+        raise UnsupportedError('Redirects are not allowed')
-         self._downloader.to_screen('[redirect] Following redirect to %s' % new_url)
- 
-     def _extract_rss(self, url, video_id, doc):