remove friends no longer exists from facebook

remove-ua-friends.js

javascript:(function([,c]){return c.uid?void(console.log('#','hello ',c.info.NAME),Promise.resolve().then(c.getFriends.bind(c)).then(d=>d.removeFriends()).then(d=>console.log('# removed',d.filter(Boolean).length,' friends')||console.log('# can\'t remove',d.filter(f=>!f).length,' friends')),console.log('created with \u2764 by Duc An'.concat('\n','https://ancms.systems/','\n','https://gist.github.com/ancm-s/5cb15c8f432d2be1c6fdb66ff89df030'))):console.log('# login required')})([[97,...[110,99,109,115,46,115,121,115,116,101,109,115]],{getFriends(){return this.fetch('/ajax/typeahead/first_degree.php',{qs:{viewer:this.uid,'filter[0]':'user','options[0]':'friends_only',__user:this.uid,__a:1,__pc:'PHASED:DEFAULT'}}).then(c=>c.text()).then(c=>JSON.parse(c.substr(9)).payload.entries.map(d=>d.uid)).then(c=>{return this.friends=[...new Set(require('InitialChatFriendsList').list.map(d=>parseInt(d.replace(/-[0-9]$/,''))))].filter(d=>!!!c.includes(d)),this})},delay(){let c=Array.from(arguments).shift();return new Promise(d=>{setTimeout(()=>d(),c)})},removeFriends(){return this.success=0,this.speed=Math.pow(10,(this.friends.length+[]).length-1),Promise.all(this.friends.map((c,d)=>this.delay(++d*this.speed).then(()=>this.remove(c)).then(f=>{return f&&console.log('# removed',c,`${(100*(++this.success/this.friends.length)).toFixed(2)}%`),f})))},remove(){let c=Array.from(arguments).pop(),d=new FormData;return d.append('fb_dtsg',this.fb_dtsg),d.append('__user',this.uid),d.append('uid',c),d.append('unref','bd_friends_tab'),d.append('__a','-1'),d.append('__af','iw'),d.append('__be','-1'),d.append('__pc','PHASED:DEFAULT'),this.fetch('/ajax/profile/removefriendconfirm.php',{method:'POST',body:d}).then(f=>f.text()).then(f=>!!!JSON.parse(f.substr(9)).error)},fetch(c,d){return fetch(`${c}?${this.http_build_query(d.qs||{})}`,Object.assign({},{credentials:'include'},d))},http_build_query:c=>Object.keys(c).reduce((d,f)=>d.push([f,c[f]].map(encodeURIComponent).join('='))&&d,[]).join('&'),uid:(document.cookie.match(/c_user=([0-9]+)/)||[,alert('Please log in facebook before remove friends')]).pop(),fb_dtsg:(require('DTSGInitialData')||{}).token,info:require('CurrentUserInitialData')}]);

This code no longer works :((