Revert "Add hack to not ignore dependency on missing packages"

This reverts commit 69b6fe0d.

It broke horribly as expected :-) Trick is that if package is not found, the
dependency is mallformed anyway, so it is better to just get rid of it and hope
for the best than to break with weird error. Correct solution would be exiting
with the correct error but first of all make dependencies accross feeds work.

patches/openwrt/hack/0001-package-metadata.pl-also-add-dependency-on-missing-p.patch

-From 8914cfe9767c7517156fe54a74f89416344acffc Mon Sep 17 00:00:00 2001
-From: Build system automate <auto-build@example.com>
-Date: Thu, 1 Nov 2018 15:51:51 +0100
-Subject: [PATCH] package-metadata.pl: also add dependency on missing packages
-
----
- scripts/package-metadata.pl | 1 -
- 1 file changed, 1 deletion(-)
-
-diff --git a/scripts/package-metadata.pl b/scripts/package-metadata.pl
-index 53bb45a..73b5015 100755
---- a/scripts/package-metadata.pl
-+++ b/scripts/package-metadata.pl
-@@ -474,7 +474,6 @@ sub gen_package_mk() {
- 				unless (defined($src_dep) && (!$deptype || grep { $_ eq $deptype } @{$src_dep->{buildtypes}})) {
- 					warn sprintf "WARNING: Makefile '%s' has a build dependency on '%s', which does not exist\n",
- 						$src->{makefile}, $dep.$depsuffix;
--					next;
- 				}
- 
- 				my $depstr = sprintf '$(curdir)/%s/compile', $src_dep->{path}.$depsuffix;
--- 
-2.19.1
-