python312Packages.opentelemetry-instrumentation-grpc: fix build (#362781)

pkgs/development/python-modules/opentelemetry-instrumentation-grpc/default.nix

@@ -21,16 +21,6 @@ buildPythonPackage {
 
   disabled = pythonOlder "3.8";
 
-  patches = [
-    (fetchpatch2 {
-      name = "grpcio-compatibility.patch";
-      url = "https://github.com/open-telemetry/opentelemetry-python-contrib/commit/1c8d8ef5368c15d27c0973ce80787fd94c7b3176.patch";
-      includes = [ "src/opentelemetry/instrumentation/grpc/grpcext/_interceptor.py" ];
-      stripLen = 2;
-      hash = "sha256-FH/VubT93kwh7nWQyPfECTIayMqWIjQYSEY5TER+4vY=";
-    })
-  ];
-
   sourceRoot = "${opentelemetry-instrumentation.src.name}/instrumentation/opentelemetry-instrumentation-grpc";
 
   build-system = [ hatchling ];
@@ -46,12 +36,20 @@ buildPythonPackage {
     instruments = [ grpcio ];
   };
 
+  env = {
+    PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION = "python";
+  };
+
   nativeCheckInputs = [
     opentelemetry-test-utils
     grpcio
     pytestCheckHook
   ];
 
+  preBuild = ''
+    export TMPDIR=$(mktemp -d)
+  '';
+
   disabledTests = lib.optionals stdenv.hostPlatform.isDarwin [
     # RuntimeError: Failed to bind to address
     "TestOpenTelemetryServerInterceptorUnix"