fix some analyzer output

Author: mgravell

tests/protobuf-net.Grpc.Test.Integration/Issues/Issue100.cs

@@ -68,11 +68,12 @@ public interface ITest
             ValueTask<TestObject> GetTestInstance();
         }
 
-        
+
+#pragma warning disable IDE0051, IDE0052 // "unused" things; they are, but it depends on the TFM
         private readonly ITestOutputHelper _log;
-        ITest _server;
+        private readonly ITest _server;
         private void Log(string message) => _log?.WriteLine(message);
-
+#pragma warning restore IDE0051, IDE0052
 
         public Issue100(Issue100ServerFixture server, ITestOutputHelper log)
         {

tests/protobuf-net.Grpc.Test.Integration/Issues/Issue75_Exceptions.cs

@@ -27,16 +27,8 @@ public interface IFaultTest
             ValueTask SimplifiedFaultHandling_Fault();
         }
 
-        
-        private readonly ITestOutputHelper _log;
-        IFaultTest _server;
-        private void Log(string message) => _log?.WriteLine(message);
-
-
-        public Issue75(Issue75ServerFixture server, ITestOutputHelper log)
+        public Issue75(Issue75ServerFixture _)
         {
-            _server = server;
-            _log = log;
             GrpcClientFactory.AllowUnencryptedHttp2 = true;
         }