Remove extractors which infringe copyright (#4554)

youtube_dl/extractor/__init__.py

@@ -164,10 +164,6 @@
 from .godtube import GodTubeIE
 from .goldenmoustache import GoldenMoustacheIE
 from .golem import GolemIE
-from .gogoanime import (
-    GoGoAnimeIE,
-    GoGoAnimeSearchIE
-)
 from .googleplus import GooglePlusIE
 from .googlesearch import GoogleSearchIE
 from .gorillavid import GorillaVidIE
@@ -317,16 +313,6 @@
 from .photobucket import PhotobucketIE
 from .planetaplay import PlanetaPlayIE
 from .played import PlayedIE
-from .play44 import (
-    Play44IE,
-    ByZooIE,
-    Video44IE,
-    VideoWingIE,
-    PlayPandaIE,
-    VideoZooIE,
-    PlayBBIE,
-    EasyVideoIE
-)
 from .playfm import PlayFMIE
 from .playvid import PlayvidIE
 from .podomatic import PodomaticIE
@@ -388,10 +374,6 @@
 from .snotr import SnotrIE
 from .sockshare import SockshareIE
 from .sohu import SohuIE
-from .soulanime import (
-    SoulAnimeWatchingIE,
-    SoulAnimeSeriesIE
-)
 from .soundcloud import (
     SoundcloudIE,
     SoundcloudSetIE,
@@ -486,7 +468,6 @@
 from .videobam import VideoBamIE
 from .videodetective import VideoDetectiveIE
 from .videolecturesnet import VideoLecturesNetIE
-from .videofun import VideoFunIE
 from .videofyme import VideofyMeIE
 from .videomega import VideoMegaIE
 from .videopremium import VideoPremiumIE