Remove Endure Move Tutor from Gen6
Remove Endure Move Tutor from Gen6

Fixes #1840.

PrimalGallade45/Dropp-Pokemon-Showdown,DB898/theregalias,gustavo515/final,TheManwithskills/COC,JellalTheMage/Jellals-Server,megaslowbro1/Showdown-Server-again,lFernanl/Zero-Pokemon-Showdown,sirDonovan/Pokemon-Showdown,MayukhKundu/Flame-Savior,Atwar/server-epilogueleague.rhcloud.com,EmmaKitty/Pokemon-Showdown,svivian/Pokemon-Showdown,lFernanl/Pokemon-Showdown,Sora-League/Sora,lFernanl/Mudkip-Server,Alpha-Devs/Alpha-Server,megaslowbro1/Pokemon-Showdown,azum4roll/Pokemon-Showdown,Firestatics/Omega-Alpha,TogeSR/Lumen-Pokemon-Showdown,gustavo515/batata,SolarisFox/Pokemon-Showdown,Sora-Server/Sora,Alpha-Devs/Alpha-Server,Flareninja/Pokemon-Showdown,kuroscafe/Showdown-Boilerplate,Ecuacion/Lumen-Pokemon-Showdown,MeliodasBH/boarhat,gustavo515/final,jumbowhales/Pokemon-Showdown,Pikachuun/Pokemon-Showdown-SMCMDM,MasterFloat/LQP-Server-Showdown,jumbowhales/Pokemon-Showdown,Legit99/Lightning-Storm-Server,Vacate/Pokemon-Showdown,ehk12/coregit,gustavo515/test,Sora-Server/Sora,KewlStatics/Showdown-Template,lFernanl/Zero-Pokemon-Showdown,RustServer/Pokemon-Showdown,hayleysworld/serenity,MayukhKundu/Mudkip-Server,CreaturePhil/Showdown-Boilerplate,JellalTheMage/PS-,ZestOfLife/FestiveLife,hayleysworld/Showdown-Boilerplate,Bryan-0/Pokemon-Showdown,yashagl/pokemon,panpawn/Pokemon-Showdown,PauLucario/LQP-Server-Showdown,Pikachuun/Pokemon-Showdown,SubZeroo99/Pokemon-Showdown,AWailOfATail/awoat,Zipzapadam/Server,Ecuacion/Pokemon-Showdown,TheManwithskills/Server,Irraquated/EOS-Master,MasterFloat/Pokemon-Showdown,zczd/enculer,zek7rom/SpacialGaze,Lord-Haji/SpacialGaze,Mystifi/Exiled,Flareninja/Lumen-Pokemon-Showdown,bai2/Dropp,Kokonoe-san/Glacia-PS,Kevinxzllz/PS-Openshift-Server,ZeroParadox/ugh,Irraquated/Pokemon-Showdown,Extradeath/advanced,superman8900/Pokemon-Showdown,KewlStatics/Shit,Kevinxzllz/PS-Openshift-Server,Mystifi/Exiled,Alpha-Devs/OmegaRuby-Server,FakeSloth/Infinite,KewlStatics/Showdown-Template,AWailOfATail/awoat,ehk12/clone,megaslowbro1/Pokemon-Showdown-Server-for-megaslowbro1,svivian/Pokemon-Showdown,megaslowbro1/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,ZestOfLife/FestiveLife,DarkSuicune/Pokemon-Showdown,AustinXII/Pokemon-Showdown,ShowdownHelper/Saffron,DB898/theregalias,TheManwithskills/Dusk--Showdown,Flareninja/Showdown-Boilerplate,Zarel/Pokemon-Showdown,EienSeiryuu/Pokemon-Showdown,sama2/Dropp-Pokemon-Showdown,Zarel/Pokemon-Showdown,brettjbush/Pokemon-Showdown,Pokemon-Devs/Pokemon-Showdown,Elveman/RPCShowdownServer,AnaRitaTorres/Pokemon-Showdown,Articuno-I/Pokemon-Showdown,TheManwithskills/DS,MeliodasBH/Articuno-Land,ankailou/Pokemon-Showdown,SkyeTheFemaleSylveon/Pokemon-Showdown,DarkSuicune/Pokemon-Showdown,CharizardtheFireMage/Showdown-Boilerplate,SolarisFox/Pokemon-Showdown,abulechu/Lumen-Pokemon-Showdown,zczd/enculer,hayleysworld/serenity,yashagl/yash-showdown,urkerab/Pokemon-Showdown,yashagl/pokecommunity,ScottehMax/Pokemon-Showdown,danpantry/Pokemon-Showdown,InvalidDN/Pokemon-Showdown,lFernanl/Lumen-Pokemon-Showdown,xfix/Pokemon-Showdown,lFernanl/Lumen-Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,svivian/Pokemon-Showdown,Guernouille/Pokemon-Showdown,xfix/Pokemon-Showdown,Hidden-Mia/Roleplay-PS,HoeenCoder/SpacialGaze,PS-Spectral/Spectral,aakashrajput/Pokemon-Showdown,Zipzapadam/Server,gustavo515/batata,BlazingAura/Showdown-Boilerplate,Pokemon-Devs/Pokemon-Showdown,KewlStatics/Alliance,piiiikachuuu/Pokemon-Showdown,abrulochp/Dropp-Pokemon-Showdown,lFernanl/Pokemon-Showdown,theodelhay/test,DesoGit/Tsunami_PS,MayukhKundu/Mudkip-Server,hayleysworld/serenityserver,TogeSR/Lumen-Pokemon-Showdown,panpawn/Gold-Server,KaitoV4X/Showdown,DesoGit/TsunamiPS,JennyPRO/Jenny,KaitoV4X/Showdown,EmmaKitty/Pokemon-Showdown,hayleysworld/serenityc9,forbiddennightmare/Pokemon-Showdown-1,Enigami/Pokemon-Showdown,Ecuacion/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,Lauc1an/Perulink-Showdown,PrimalGallade45/Lumen-Pokemon-Showdown,Alpha-Devs/OmegaRuby-Server,HoeenCoder/SpacialGaze,urkerab/Pokemon-Showdown,sama2/Dropp-Pokemon-Showdown,asdfghjklohhnhn/Pokemon-Showdown,cadaeic/Pokemon-Showdown,ehk12/clone,TheDiabolicGift/Showdown-Boilerplate,Syurra/Pokemon-Showdown,ZestOfLife/PSserver,Ransei1/Alt,TheManwithskills/COC,LustyAsh/EOS-Master,Firestatics/omega,ehk12/coregit,DarkSuicune/Kakuja-2.0,Neosweiss/Pokemon-Showdown,hayleysworld/serenityc9,BuzzyOG/Pokemon-Showdown,TheManwithskills/New-boiler-test,Pikachuun/Pokemon-Showdown,ZeroParadox/ugh,Hidden-Mia/Roleplay-PS,Vacate/Pokemon-Showdown,svivian/Pokemon-Showdown,Mystifi/Exiled,sama2/Universe-Pokemon-Showdown,DesoGit/Tsunami_PS,theodelhay/test,Pablo000/aaa,AnaRitaTorres/Pokemon-Showdown,Articuno-I/Pokemon-Showdown,Git-Worm/City-PS,javi501/Lumen-Pokemon-Showdown,panpawn/Pokemon-Showdown,TheManwithskills/Server---Thermal,ZestOfLife/PSserver,SilverTactic/Dragotica-Pokemon-Showdown,JellalTheMage/PS-,Pikachuun/Pokemon-Showdown-SMCMDM,Nineage/Origin,superman8900/Pokemon-Showdown,FakeSloth/Infinite,DesoGit/Tsunami_PS,Git-Worm/City-PS,TheFenderStory/Showdown-Boilerplate,TbirdClanWish/Pokemon-Showdown,Atwar/ServerClassroom,AbsolitoSweep/Absol-server,KewlStatics/Pokeindia-Codes,yashagl/pokecommunity,TheDiabolicGift/Lumen-Pokemon-Showdown,psnsVGC/Wish-Server,AustinXII/Pokemon-Showdown,Celecitia/Plux-Pokemon-Showdown,Guernouille/Pokemon-Showdown,KewlStatics/Alliance,ZeroParadox/BlastBurners,MeliodasBH/Articuno-Land,Elveman/RPCShowdownServer,SilverTactic/Showdown-Boilerplate,HoeenCoder/SpacialGaze,QuiteQuiet/Pokemon-Showdown,Firestatics/Omega-Alpha,xCrystal/Pokemon-Showdown,SilverTactic/Showdown-Boilerplate,abulechu/Dropp-Pokemon-Showdown,BlazingAura/Showdown-Boilerplate,Irraquated/Showdown-Boilerplate,PrimalGallade45/Dropp-Pokemon-Showdown,Irraquated/Showdown-Boilerplate,MeliodasBH/boarhat,SkyeTheFemaleSylveon/Mudkip-Server,TheManwithskills/serenity,xfix/Pokemon-Showdown,javi501/Lumen-Pokemon-Showdown,asdfghjklohhnhn/Pokemon-Showdown,Legit99/Lightning-Storm-Server,piiiikachuuu/Pokemon-Showdown,aakashrajput/Pokemon-Showdown,InvalidDN/Pokemon-Showdown,SkyeTheFemaleSylveon/Pokemon-Showdown,jd4564/Pokemon-Showdown,Irraquated/EOS-Master,JennyPRO/Jenny,Flareninja/Showdown-Boilerplate,abulechu/Lumen-Pokemon-Showdown,megaslowbro1/Pokemon-Showdown-Server-for-megaslowbro1,kotarou3/Krister-Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,Lauc1an/Perulink-Showdown,AWailOfATail/Pokemon-Showdown,kuroscafe/Paradox,xfix/Pokemon-Showdown,Atwar/ServerClassroom,SSJGVegito007/Vegito-s-Server,arkanox/MistShowdown,KewlStatics/Pokeindia-Codes,sirDonovan/Pokemon-Showdown,abrulochp/Dropp-Pokemon-Showdown,sama2/Lumen-Pokemon-Showdown,xfix/Pokemon-Showdown,Zarel/Pokemon-Showdown,panpawn/Gold-Server,NoahVSGamingYT/Pokemon-Showdown,NoahVSGamingYT/Pokemon-Showdown,Flareninja/Lumen-Pokemon-Showdown,Ridukuo/Test,sama2/Lumen-Pokemon-Showdown,ehk12/bigbangtempclone,TheFenderStory/Showdown-Boilerplate,TheManwithskills/New-boiler-test,ankailou/Pokemon-Showdown,Pablo000/aaa,KewlStatics/Shit,TheFenderStory/Pokemon-Showdown,yashagl/pokemon,TheManwithskills/Server,TheManwithskills/serenity,lAlejandro22/lolipoop,anubhabsen/Pokemon-Showdown,johtooo/PS,kuroscafe/Paradox,Atwar/server-epilogueleague.rhcloud.com,scotchkorean27/Pokemon-Showdown,MayukhKundu/Flame-Savior,zek7rom/SpacialGaze,Ransei1/Alt,kubetz/Pokemon-Showdown,AbsolitoSweep/Absol-server,lFernanl/Mudkip-Server,SSJGVegito007/Vegito-s-Server,Extradeath/advanced,ehk12/bigbangtempclone,forbiddennightmare/Pokemon-Showdown-1,cadaeic/Pokemon-Showdown,kupochu/Pokemon-Showdown,TbirdClanWish/Pokemon-Showdown,panpawn/Gold-Server,gustavo515/gashoro,Syurra/Pokemon-Showdown,Enigami/Pokemon-Showdown,k3naan/Pokemon-Showdown,Sora-League/Sora,DarkSuicune/Kakuja-2.0,ShowdownHelper/Saffron,Bryan-0/Pokemon-Showdown,Neosweiss/Pokemon-Showdown,Sora-Server/Sora,Wando94/Spite,Wando94/Spite,Ridukuo/Test,kupochu/Pokemon-Showdown,Wando94/Pokemon-Showdown,Volcos/SpacialGaze,bai2/Dropp,gustavo515/test,ShowdownHelper/Saffron,aakashrajput/Pokemon-Showdown,SubZeroo99/Pokemon-Showdown,lAlejandro22/lolipoop,MasterFloat/LQP-Server-Showdown,TheManwithskills/Server---Thermal,danpantry/Pokemon-Showdown,Wando94/Pokemon-Showdown,yashagl/pokemon-showdown,BuzzyOG/Pokemon-Showdown,psnsVGC/Wish-Server,Ecuacion/Lumen-Pokemon-Showdown,yashagl/pokemon-showdown,LustyAsh/EOS-Master,Enigami/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,PrimalGallade45/Lumen-Pokemon-Showdown,Firestatics/Firestatics46,Enigami/Pokemon-Showdown,megaslowbro1/Showdown-Server-again,EienSeiryuu/Pokemon-Showdown,abrulochp/Lumen-Pokemon-Showdown,abrulochp/Lumen-Pokemon-Showdown,PauLucario/LQP-Server-Showdown,yashagl/yash-showdown,Volcos/SpacialGaze,brettjbush/Pokemon-Showdown,kuroscafe/Showdown-Boilerplate,urkerab/Pokemon-Showdown,TheDiabolicGift/Lumen-Pokemon-Showdown,hayleysworld/serenityserver,AustinXII/Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,SilverTactic/Dragotica-Pokemon-Showdown,TheManwithskills/DS,ZeroParadox/BlastBurners,SkyeTheFemaleSylveon/Mudkip-Server,Irraquated/Pokemon-Showdown,Firestatics/Firestatics46,ScottehMax/Pokemon-Showdown,TheFenderStory/Pokemon-Showdown,scotchkorean27/Pokemon-Showdown,arkanox/MistShowdown,gustavo515/gashoro,Lord-Haji/SpacialGaze,k3naan/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,kotarou3/Krister-Pokemon-Showdown,Irraquated/Pokemon-Showdown,TheManwithskills/Creature-phil-boiler,Sora-League/Sora,sirDonovan/Pokemon-Showdown,HoeenCoder/SpacialGaze,TheManwithskills/Dusk--Showdown,Firestatics/omega,xCrystal/Pokemon-Showdown,JellalTheMage/Jellals-Server,DesoGit/TsunamiPS,xCrystal/Pokemon-Showdown,svivian/Pokemon-Showdown,TheManwithskills/Creature-phil-boiler,jd4564/Pokemon-Showdown,TheDiabolicGift/Showdown-Boilerplate,CharizardtheFireMage/Showdown-Boilerplate,hayleysworld/Showdown-Boilerplate,MasterFloat/Pokemon-Showdown,Nineage/Origin,azum4roll/Pokemon-Showdown,BuzzyOG/Pokemon-Showdown,anubhabsen/Pokemon-Showdown,abulechu/Dropp-Pokemon-Showdown,Flareninja/Pokemon-Showdown,Kokonoe-san/Glacia-PS,johtooo/PS,PS-Spectral/Spectral,kubetz/Pokemon-Showdown,PS-Spectral/Spectral,RustServer/Pokemon-Showdown,Lord-Haji/SpacialGaze,sama2/Universe-Pokemon-Showdown,Celecitia/Plux-Pokemon-Showdown