Revert "hydra_unstable: add patch for Crypt::Passphrase::Argon2"

This reverts commit 86a22f6b65.

The patch is already upstreamed.

pkgs/development/tools/misc/hydra/crypt-passphrase-argon2-fix-output-len.patch

@@ -1,28 +0,0 @@
-From 6a5fb9efaea35ca29836371307f5083576f421ab Mon Sep 17 00:00:00 2001
-From: Stig Palmquist <git@stig.io>
-Date: Fri, 20 Oct 2023 00:09:28 +0200
-Subject: [PATCH] Set output length of C::P::Argon2 hashes to 16
-
-Since the default lengths in Crypt::Passphrase::Argon2 changed from 16
-to 32 in in 0.009, some tests that expected the passphrase to be
-unchanged started failing.
----
- src/lib/Hydra/Schema/Result/Users.pm | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/lib/Hydra/Schema/Result/Users.pm b/src/lib/Hydra/Schema/Result/Users.pm
-index b3de6543..c28ae931 100644
---- a/src/lib/Hydra/Schema/Result/Users.pm
-+++ b/src/lib/Hydra/Schema/Result/Users.pm
-@@ -216,7 +216,7 @@ sub json_hint {
- 
- sub _authenticator() {
-     my $authenticator = Crypt::Passphrase->new(
--        encoder    => 'Argon2',
-+        encoder    => { module => 'Argon2', output_size => 16 },
-         validators => [
-             (sub {
-                 my ($password, $hash) = @_;
--- 
-2.42.0
-

pkgs/development/tools/misc/hydra/unstable.nix

@@ -205,10 +205,6 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
-  patches = [
-    ./crypt-passphrase-argon2-fix-output-len.patch
-  ];
-
   postPatch = ''
     # Change 5s timeout for init to 30s
     substituteInPlace t/lib/HydraTestContext.pm \