download.pl: use https://source.openwrt.org

https://sources.lede-openwrt.org now redirects to there

https://downloads.openwrt.org/sources returns 404, so remove it here

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

scripts/download.pl

@@ -258,9 +258,8 @@ foreach my $mirror (@ARGV) {
 }
 
 #push @mirrors, 'https://mirror1.openwrt.org';
-push @mirrors, 'https://sources.lede-project.org';
+push @mirrors, 'https://sources.openwrt.org';
 push @mirrors, 'https://mirror2.openwrt.org/sources';
-push @mirrors, 'https://downloads.openwrt.org/sources';
 
 while (!-f "$target/$filename") {
 	my $mirror = shift @mirrors;