Fix some build warnings (#6832)

Co-authored-by: metalgearsloth <metalgearsloth@gmail.com>

Content.Server/GameTicking/GameTicker.cs

@@ -90,7 +90,6 @@ namespace Content.Server.GameTicking
         [Dependency] private readonly IBaseServer _baseServer = default!;
         [Dependency] private readonly IWatchdogApi _watchdogApi = default!;
         [Dependency] private readonly IGameMapManager _gameMapManager = default!;
-        [Dependency] private readonly IPauseManager _pauseManager = default!;
 #if EXCEPTION_TOLERANCE
         [Dependency] private readonly IRuntimeLog _runtimeLog = default!;
 #endif