elasticsearch2: drop unsupported version

pkgs/servers/search/elasticsearch/2.x.nix

@@ -1,40 +0,0 @@
-{ stdenv, fetchurl, makeWrapper, jre, utillinux }:
-
-with stdenv.lib;
-
-stdenv.mkDerivation rec {
-  version = "2.4.4";
-  name = "elasticsearch-${version}";
-
-  src = fetchurl {
-    url = "https://download.elasticsearch.org/elasticsearch/release/org/elasticsearch/distribution/tar/elasticsearch/${version}/${name}.tar.gz";
-    sha256 = "1qjq04sfqb35pf2xpvr8j5p27chfxpjp8ymrp1h5bfk5rbk9444q";
-  };
-
-  patches = [ ./es-home-2.x.patch ./es-classpath-2.x.patch ];
-
-  buildInputs = [ makeWrapper jre utillinux ];
-
-  installPhase = ''
-    mkdir -p $out
-    cp -R bin config lib modules $out
-
-    # don't want to have binary with name plugin
-    mv $out/bin/plugin $out/bin/elasticsearch-plugin
-    wrapProgram $out/bin/elasticsearch \
-      --prefix ES_CLASSPATH : "$out/lib/${name}.jar":"$out/lib/*" \
-      --prefix PATH : "${utillinux}/bin" \
-      --set JAVA_HOME "${jre}"
-    wrapProgram $out/bin/elasticsearch-plugin --set JAVA_HOME "${jre}"
-  '';
-
-  meta = {
-    description = "Open Source, Distributed, RESTful Search Engine";
-    license = licenses.asl20;
-    platforms = platforms.unix;
-    maintainers = [
-      maintainers.offline
-      maintainers.markWot
-    ];
-  };
-}

pkgs/servers/search/elasticsearch/es-classpath-2.x.patch

@@ -1,38 +0,0 @@
-diff -rupN a/bin/elasticsearch b/bin/elasticsearch
---- a/bin/elasticsearch	2017-02-08 18:32:28.000298543 -0500
-+++ b/bin/elasticsearch	2017-02-08 19:10:45.692916675 -0500
-@@ -81,12 +81,7 @@ ES_HOME=`cd "$ES_HOME"; pwd`
- # If an include wasn't specified in the environment, then search for one...
- if [ "x$ES_INCLUDE" = "x" ]; then
-     # Locations (in order) to use when searching for an include file.
--    for include in /usr/share/elasticsearch/elasticsearch.in.sh \
--                   /usr/local/share/elasticsearch/elasticsearch.in.sh \
--                   /opt/elasticsearch/elasticsearch.in.sh \
--                   ~/.elasticsearch.in.sh \
--                   "$ES_HOME/bin/elasticsearch.in.sh" \
--                   "`dirname "$0"`"/elasticsearch.in.sh; do
-+    for include in "`dirname "$0"`"/elasticsearch.in.sh; do
-         if [ -r "$include" ]; then
-             . "$include"
-             break
-diff -rupN a/bin/elasticsearch.in.sh b/bin/elasticsearch.in.sh
---- a/bin/elasticsearch.in.sh	2017-02-08 18:32:28.000298543 -0500
-+++ b/bin/elasticsearch.in.sh	2017-02-08 18:33:46.816634599 -0500
-@@ -1,17 +1,5 @@
- #!/bin/sh
- 
--# check in case a user was using this mechanism
--if [ "x$ES_CLASSPATH" != "x" ]; then
--    cat >&2 << EOF
--Error: Don't modify the classpath with ES_CLASSPATH. Best is to add
--additional elements via the plugin mechanism, or if code must really be
--added to the main classpath, add jars to lib/ (unsupported).
--EOF
--    exit 1
--fi
--
--ES_CLASSPATH="$ES_HOME/lib/elasticsearch-2.4.4.jar:$ES_HOME/lib/*"
--
- if [ "x$ES_MIN_MEM" = "x" ]; then
-     ES_MIN_MEM=256m
- fi

pkgs/servers/search/elasticsearch/es-home-2.x.patch

@@ -1,31 +0,0 @@
-diff -rupN a/bin/elasticsearch b/bin/elasticsearch
---- a/bin/elasticsearch	2015-11-18 21:48:18.000000000 +0100
-+++ b/bin/elasticsearch	2015-12-04 00:52:21.032475098 +0100
-@@ -72,7 +72,11 @@ while [ -h "$SCRIPT" ] ; do
- done
- 
- # determine elasticsearch home
--ES_HOME=`dirname "$SCRIPT"`/..
-+
-+if [ -z "$ES_HOME" ]; then
-+    echo "You must set the ES_HOME var" >&2
-+    exit 1
-+fi
- 
- # make ELASTICSEARCH_HOME absolute
- ES_HOME=`cd "$ES_HOME"; pwd`
-diff -rupN a/bin/plugin b/bin/plugin
---- a/bin/plugin	2015-11-18 21:48:18.000000000 +0100
-+++ b/bin/plugin	2015-12-04 00:52:55.947453619 +0100
-@@ -17,7 +17,10 @@ while [ -h "$SCRIPT" ] ; do
- done
- 
- # determine elasticsearch home
--ES_HOME=`dirname "$SCRIPT"`/..
-+if [ -z "$ES_HOME" ]; then
-+    echo "You must set the ES_HOME var" >&2
-+    exit 1
-+fi
- 
- # make ELASTICSEARCH_HOME absolute
- ES_HOME=`cd "$ES_HOME"; pwd`

pkgs/top-level/all-packages.nix

@@ -2272,9 +2272,7 @@ with pkgs;
   elk5Version = "5.6.9";
   elk6Version = "6.3.2";
 
-  elasticsearch2 = callPackage ../servers/search/elasticsearch/2.x.nix { };
   elasticsearch5 = callPackage ../servers/search/elasticsearch/5.x.nix { };
-
   elasticsearch6 = callPackage ../servers/search/elasticsearch { };
   elasticsearch6-oss = callPackage ../servers/search/elasticsearch {
     enableUnfree = false;