Removed lines related to DuckDuckGo's proxy

I think I've let them sit for like a week or so. It should've been
enough of a buffer time for everyone else.

config.sample.js

@@ -124,16 +124,6 @@ module.exports = {
       port: 3310
     },
 
-    /*
-      Use DuckDuckGo's proxy when fetching URL uploads.
-      This may be considered a hack and not supported by DuckDuckGo, so USE AT YOUR OWN RISK.
-      This should work with any type of URLs, but they have to be direct links,
-      since DuckDuckGo's proxy will not follow redirects.
-      NOTE: As of 09/12/18, this is no longer supported.
-      The option will be removed from config file in the near future.
-    */
-    urlDuckDuckGoProxy: false,
-
     /*
       Chunk size for chunk uploads. Needs to be in MB.
       If this is enabled, every files uploaded from the homepage uploader will forcibly be chunked

controllers/uploadController.js

@@ -223,11 +223,6 @@ uploadsController.actuallyUploadByUrl = async (req, res, user, albumid) => {
   const urls = req.body.urls
   if (!urls || !(urls instanceof Array)) return erred('Missing "urls" property (Array).')
 
-  // DuckDuckGo's proxy
-  if (config.uploads.urlDuckDuckGoProxy)
-    return erred('URL uploads unavailable. Please contact the site owner.')
-    // urls = urls.map(url => `https://proxy.duckduckgo.com/iu/?u=${encodeURIComponent(url)}&f=1`)
-
   let iteration = 0
   const infoMap = []
   for (const url of urls) {

lolisafe.js

@@ -99,11 +99,6 @@ safe.use((error, req, res, next) => {
 })
 
 const start = async () => {
-  if (config.uploads.urlDuckDuckGoProxy) {
-    console.warn('Warning: DuckDuckGo\'s proxy is no longer supported as it stops reporting Content-Length header.')
-    return process.exit(1)
-  }
-
   if (config.showGitHash) {
     const gitHash = await new Promise((resolve, reject) => {
       require('child_process').exec('git rev-parse HEAD', (error, stdout) => {