provider/qq: drop searchid

The argument is not necessary and causes some issues,
so let's simply drop it.

Fixes: #612.

src/provider/qq.js

@@ -30,8 +30,8 @@ const search = info => {
 	const url =
 		'https://c.y.qq.com/soso/fcgi-bin/client_search_cp?' +
 		'ct=24&qqmusic_ver=1298&new_json=1&remoteplace=txt.yqq.center&' +
-		'searchid=46804741196796149&t=0&aggr=1&cr=1&catZhida=1&lossless=0&' +
-		'flag_qc=0&p=1&n=20&w=' + encodeURIComponent(info.keyword) + '&' +
+		't=0&aggr=1&cr=1&catZhida=1&lossless=0&flag_qc=0&p=1&n=20&w=' +
+		encodeURIComponent(info.keyword) + '&' +
 		'g_tk=5381&jsonpCallback=MusicJsonCallback10005317669353331&loginUin=0&hostUin=0&' +
 		'format=jsonp&inCharset=utf8&outCharset=utf-8&notice=0&platform=yqq&needNewCode=0'
 
@@ -150,4 +150,4 @@ const track = id => {
 
 const check = info => cache(search, info).then(track)
 
-module.exports = {check, track}
+module.exports = {check, track}