http: cleanup download_file, remove unimplemented download_file_with_progress

vlib/net/http/download_nix.c.v

@@ -2,51 +2,3 @@
 // Use of this source code is governed by an MIT license
 // that can be found in the LICENSE file.
 module http
-
-type DownloadFn = fn (written int)
-
-/*
-struct DownloadStruct {
-mut:
-	stream  voidptr
-	written int
-	cb      DownloadFn
-}
-*/
-fn download_cb(ptr voidptr, size usize, nmemb usize, userp voidptr) {
-	/*
-	mut data := &DownloadStruct(userp)
-	written := C.fwrite(ptr, size, nmemb, data.stream)
-	data.written += written
-	data.cb(data.written)
-	//#data->cb(data->written); // TODO
-	return written
-	*/
-}
-
-pub fn download_file_with_progress(url string, out string, cb DownloadFn, cb_finished fn ()) {
-	/*
-	curl := C.curl_easy_init()
-	if isnil(curl) {
-		return
-	}
-	cout := out.str
-	fp := C.fopen(cout, 'wb')
-	C.curl_easy_setopt(curl, CURLOPT_URL, url.str)
-	C.curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, download_cb)
-	data := &DownloadStruct {
-		stream:fp
-		cb: cb
-	}
-	C.curl_easy_setopt(curl, CURLOPT_WRITEDATA, data)
-	mut d := 0.0
-	C.curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d)
-	C.curl_easy_perform(curl)
-	C.curl_easy_cleanup(curl)
-	C.fclose(fp)
-	cb_finished()
-	*/
-}
-
-fn empty() {
-}