osu-lazer: remove temper detection bypass patch

See #132610

pkgs/games/osu-lazer/bypass-tamper-detection.patch

@@ -1,23 +0,0 @@
-diff --git a/osu.Game/OsuGameBase.cs b/osu.Game/OsuGameBase.cs
-index 98f60d52d..a27ce47ca 100644
---- a/osu.Game/OsuGameBase.cs
-+++ b/osu.Game/OsuGameBase.cs
-@@ -135,17 +135,7 @@ public OsuGameBase()
-         [BackgroundDependencyLoader]
-         private void load()
-         {
--            try
--            {
--                using (var str = File.OpenRead(typeof(OsuGameBase).Assembly.Location))
--                    VersionHash = str.ComputeMD5Hash();
--            }
--            catch
--            {
--                // special case for android builds, which can't read DLLs from a packed apk.
--                // should eventually be handled in a better way.
--                VersionHash = $"{Version}-{RuntimeInfo.OS}".ComputeMD5Hash();
--            }
-+            VersionHash = "253aa3a3a356a71295bf5b018cd4fda1";
- 
-             Resources.AddStore(new DllResourceStore(OsuResources.ResourceAssembly));
- 

pkgs/games/osu-lazer/default.nix

@@ -25,9 +25,6 @@ in stdenv.mkDerivation rec {
     sha256 = "I7UkbyH2i218d5RCq4al9Gr1C0MX339jFOeyKrKQ3b0=";
   };
 
-  patches = [ ./bypass-tamper-detection.patch ];
-  patchFlags = [ "--binary" "-p1" ];
-
   nativeBuildInputs = [
     dotnet-sdk dotnetPackages.Nuget makeWrapper
     # FIXME: Without `cacert`, we will suffer from https://github.com/NuGet/Announcements/issues/49