fix linter

Author: KirillKurdyukov

src/Ydb.Sdk/tests/Topic/WriterUnitTests.cs

@@ -249,7 +249,6 @@ public async Task Initialize_WhenInitResponseStatusIsRetryable_ShouldRetryInitia
                 },
                 Status = StatusIds.Types.StatusCode.Success
             });
-        ;
 
         using var writer = new WriterBuilder<long>(_mockIDriver.Object, "/topic")
             { ProducerId = "producerId" }.Build();