Fix HttpClientMetrics instrumentation

src/OpenTelemetry.AutoInstrumentation/Loading/Initializers/HttpClientMetricsInitializer.cs

@@ -24,11 +24,8 @@ private void InitializeOnFirstCall(ILifespanManager lifespanManager)
             return;
         }
 
-        var optionsType = Type.GetType("OpenTelemetry.Instrumentation.Http.HttpClientMetricInstrumentationOptions, OpenTelemetry.Instrumentation.Http")!;
-        var options = Activator.CreateInstance(optionsType)!;
-
         var instrumentationType = Type.GetType("OpenTelemetry.Instrumentation.Http.HttpClientMetrics, OpenTelemetry.Instrumentation.Http")!;
-        var instrumentation = Activator.CreateInstance(instrumentationType, options)!;
+        var instrumentation = Activator.CreateInstance(instrumentationType)!;
 
         lifespanManager.Track(instrumentation);
     }