libressl: 2.3.6 -> 2.3.7, 2.4.1 -> 2.4.2

Version 2.2.x is removed because it is not maintained by upstream anymore.

pkgs/development/libraries/libressl/2.2.nix

···
-{ stdenv, fetchurl }:
-
-stdenv.mkDerivation rec {
-  name = "libressl-${version}";
-  version = "2.2.9";
-
-  src = fetchurl {
-    url    = "mirror://openbsd/LibreSSL/${name}.tar.gz";
-    sha256 = "0i2cbkj07kcs2is8k8wirvywg4az3wk4s3q1slwp4qw3x9vz63vi";
-  };
-
-  enableParallelBuilding = true;
-
-  outputs = [ "dev" "out" "man" "bin" ];
-
-  meta = with stdenv.lib; {
-    description = "Free TLS/SSL implementation";
-    homepage    = "http://www.libressl.org";
-    platforms   = platforms.all;
-    maintainers = with maintainers; [ thoughtpolice wkennington fpletz globin ];
-  };
-}

pkgs/development/libraries/libressl/2.3.nix

···
 
 stdenv.mkDerivation rec {
   name = "libressl-${version}";
-  version = "2.3.6";
+  version = "2.3.7";
 
   src = fetchurl {
     url    = "mirror://openbsd/LibreSSL/${name}.tar.gz";
-    sha256 = "1yipsp1ici207nbminbf1knh252kzvqg036v0xpx0fw1wrwlg2im";
+    sha256 = "0q08yysyalz0fvzajm3x4wg4k6gn4hhd04qsfv27r1p4kj2mv7zm";
   };
 
   enableParallelBuilding = true;

pkgs/development/libraries/libressl/2.4.nix

···
 
 stdenv.mkDerivation rec {
   name = "libressl-${version}";
-  version = "2.4.1";
+  version = "2.4.2";
 
   src = fetchurl {
     url    = "mirror://openbsd/LibreSSL/${name}.tar.gz";
-    sha256 = "0xq4x1s91aqzrf8j9d4kf4j093cz2ayg0xrybsl4gkb966qj468j";
+    sha256 = "1qyrcyzrrn6r9cqvm66ib72qyr65q4hrdyiq1vb24a6nwmwdg1sz";
   };
 
   enableParallelBuilding = true;

pkgs/top-level/all-packages.nix

···
 
   openslp = callPackage ../development/libraries/openslp {};
 
-  libressl = self.libressl_2_3;
-  libressl_2_2 = callPackage ../development/libraries/libressl/2.2.nix {
-    fetchurl = fetchurlBoot;
-  };
+  libressl = self.libressl_2_4;
   libressl_2_3 = callPackage ../development/libraries/libressl/2.3.nix {
     fetchurl = fetchurlBoot;
   };