Remove unused settings

Remove outdated settings by !294 (merged)

See also pleroma!297 (merged)

static/config.json

@@ -5,11 +5,6 @@
   "redirectRootNoLogin": "/main/all",
   "redirectRootLogin": "/main/friends",
   "chatDisabled": false,
-  "showWhoToFollowPanel": false,
-  "whoToFollowProvider": "https://vinayaka.distsn.org/cgi-bin/vinayaka-user-match-osa-api.cgi?{{host}}+{{user}}",
-  "whoToFollowProviderDummy2": "https://followlink.osa-p.net/api/get_recommend.json?acct=@{{user}}@{{host}}",
-  "whoToFollowLink": "https://vinayaka.distsn.org/?{{host}}+{{user}}",
-  "whoToFollowLinkDummy2": "https://followlink.osa-p.net/recommend.html",
   "showInstanceSpecificPanel": false,
   "scopeOptionsEnabled": false,
   "collapseMessageWithSubject": false