Remove unnecessary call to hydra-queue-runner --unlock

Dependencies

• [2] Y5V26IWZ hydra-queue-runner.service: Set IN_SYSTEMD
• [3] ZYEFL36Q Ported/merged properties from the TUD configuration's hydra-module
• [4] 4HDPYRJ6 Update the hydra-queue-runner unit
• [5] 2ANV36PB Hackery
• [6] TTZ26BJQ Unify Hydra's NixOS module with the one used for hydra.nixos.org
• [7] 7XOH2DGH hydra-module.nix: Give types to options
• [*] D3MDJONY

Change contents

• replacement in hydra-module.nix at line 294
  [3.1684]→[3.1803:1880](∅→∅),[3.1880]→[2.58:146](∅→∅)
  − { ExecStartPre = "${cfg.package}/bin/hydra-queue-runner --unlock";

  − ExecStart = "@${cfg.package}/bin/hydra-queue-runner hydra-queue-runner -v";
  [3.1684]

  [3.85]
  + { ExecStart = "@${cfg.package}/bin/hydra-queue-runner hydra-queue-runner -v --option build-use-substitutes false";