icu: Remove icu59 and icu65

They are no longer used as overrides by any nixpkgs packages.

pkgs/development/libraries/icu/59.nix

@@ -1,4 +0,0 @@
-import ./base.nix {
-  version = "59.1";
-  sha256 = "1zkmbg2932ggvpgjp8pys0cj6z8bw087y8858009shkrjfpzscki";
-}

pkgs/development/libraries/icu/65.nix

@@ -1,4 +0,0 @@
-import ./base.nix {
-  version = "65.1";
-  sha256 = "0j6r6qqnhfr5iqkx53k63ifkm93kv1kkb7h2mlgd1mnnndk79qsk";
-}

pkgs/top-level/aliases.nix

@@ -566,6 +566,8 @@ mapAliases ({
   icecat-bin = throw "icecat-bin has been removed, the binary builds are not maintained upstream"; # Added 2022-02-15
   icedtea8_web = adoptopenjdk-icedtea-web; # Added 2019-08-21
   icedtea_web = adoptopenjdk-icedtea-web; # Added 2019-08-21
+  icu59 = throw "icu59 has been removed, use a more recent version instead"; # Added 2022-05-14
+  icu65 = throw "icu65 has been removed, use a more recent version instead"; # Added 2022-05-14
   idea = throw "'idea' has been renamed to/replaced by 'jetbrains'"; # Converted to throw 2022-02-22
   imapproxy = throw "imapproxy has been removed because it did not support a supported openssl version"; # added 2021-12-15
   imagemagick7Big = imagemagickBig; # Added 2021-02-22

pkgs/top-level/all-packages.nix

@@ -17876,9 +17876,6 @@ with pkgs;
   icu58 = callPackage (import ../development/libraries/icu/58.nix fetchurl) ({
     nativeBuildRoot = buildPackages.icu58.override { buildRootOnly = true; };
   });
-  icu59 = callPackage ../development/libraries/icu/59.nix ({
-    nativeBuildRoot = buildPackages.icu59.override { buildRootOnly = true; };
-  });
   icu60 = callPackage ../development/libraries/icu/60.nix ({
     nativeBuildRoot = buildPackages.icu60.override { buildRootOnly = true; };
   });
@@ -17888,9 +17885,6 @@ with pkgs;
   icu64 = callPackage ../development/libraries/icu/64.nix ({
     nativeBuildRoot = buildPackages.icu64.override { buildRootOnly = true; };
   });
-  icu65 = callPackage ../development/libraries/icu/65.nix ({
-    nativeBuildRoot = buildPackages.icu65.override { buildRootOnly = true; };
-  });
   icu66 = callPackage ../development/libraries/icu/66.nix ({
     nativeBuildRoot = buildPackages.icu66.override { buildRootOnly = true; };
   });