flink_1_5: drop

It suffers from CVE-2020-17518.

pkgs/applications/networking/cluster/flink/default.nix

@@ -1,27 +1,12 @@
-{ lib, stdenv, fetchurl, makeWrapper, jre
-, version ? "1.6" }:
-
-let
-  versionMap = {
-    "1.5" = {
-      flinkVersion = "1.5.5";
-      sha256 = "18wqcqi3gyqd40nspih99gq7ylfs20b35f4dcrspffagwkfp2l4z";
-    };
-    "1.6" = {
-      flinkVersion = "1.11.1";
-      sha256 = "0338bg2sb427c1rrf2cmsz63sz0yk6gclpli2lskq0mpx72wxpl0";
-    };
-  };
-in
-
-with versionMap.${version};
+{ lib, stdenv, fetchurl, makeWrapper, jre }:
 
 stdenv.mkDerivation rec {
-  name = "flink-${flinkVersion}";
+  pname = "flink";
+  version = "1.11.1";
 
   src = fetchurl {
-    url = "mirror://apache/flink/${name}/${name}-bin-scala_2.11.tgz";
-    inherit sha256;
+    url = "mirror://apache/flink/${pname}-${version}/${pname}-${version}-bin-scala_2.11.tgz";
+    sha256 = "0338bg2sb427c1rrf2cmsz63sz0yk6gclpli2lskq0mpx72wxpl0";
   };
 
   nativeBuildInputs = [ makeWrapper ];

pkgs/top-level/aliases.nix

@@ -168,6 +168,7 @@ mapAliases ({
   firestr = throw "firestr has been removed."; # added 2019-12-08
   fish-foreign-env = throw "fish-foreign-env has been replaced with fishPlugins.foreign-env"; # added 2020-12-29, modified 2021-01-10
   flameGraph = flamegraph; # added 2018-04-25
+  flink_1_5 = throw "flink_1_5 was removed, use flink instead"; # added 2021-01-25
   flvtool2 = throw "flvtool2 has been removed."; # added 2020-11-03
   foldingathome = fahclient; # added 2020-09-03
   font-awesome-ttf = font-awesome; # 2018-02-25

pkgs/top-level/all-packages.nix

@@ -21782,7 +21782,6 @@ in
   fldigi = callPackage ../applications/radio/fldigi { };
 
   flink = callPackage ../applications/networking/cluster/flink { };
-  flink_1_5 = flink.override { version = "1.5"; };
 
   fllog = callPackage ../applications/radio/fllog { };