Remove redundant ConfigureAwait (#2469)

Author: Havret

src/Confluent.Kafka/SyncOverAsyncDeserializer.cs

@@ -73,7 +73,6 @@ public SyncOverAsyncDeserializer(IAsyncDeserializer<T> asyncDeserializer)
         /// </returns>
         public T Deserialize(ReadOnlySpan<byte> data, bool isNull, SerializationContext context)
             => asyncDeserializer.DeserializeAsync(new ReadOnlyMemory<byte>(data.ToArray()), isNull, context)
-                    .ConfigureAwait(continueOnCapturedContext: false)
                     .GetAwaiter()
                     .GetResult();
     }

src/Confluent.Kafka/SyncOverAsyncSerializer.cs

@@ -71,7 +71,6 @@ public SyncOverAsyncSerializer(IAsyncSerializer<T> asyncSerializer)
         /// </returns>
         public byte[] Serialize(T data, SerializationContext context)
             => asyncSerializer.SerializeAsync(data, context)
-                .ConfigureAwait(continueOnCapturedContext: false)
                 .GetAwaiter()
                 .GetResult();
     }