fix linter

Author: KirillKurdyukov

src/Ydb.Sdk/src/Ado/Internal/IssueMessageUtils.cs

@@ -27,7 +27,7 @@ private static string IssuesToString(IEnumerable<IssueMessage> issueMessages, in
                 sb.AppendLine();
                 sb.Append(IssuesToString(message.Issues, currentIndent + indent, indent));
             }
-            
+
             return sb.ToString();
         }));
 

src/Ydb.Sdk/src/Driver.cs

@@ -44,7 +44,7 @@ public async Task Initialize()
                 await DiscoverEndpoints();
 
                 _ = Task.Run(PeriodicDiscovery);
-                
+
                 return;
             }
             catch (YdbException e)

src/Ydb.Sdk/src/Services/Topic/Reader/Reader.cs

@@ -2,7 +2,6 @@
 using System.Threading.Channels;
 using Google.Protobuf.WellKnownTypes;
 using Microsoft.Extensions.Logging;
-using Ydb.Sdk.Ado;
 using Ydb.Sdk.Ado.Internal;
 using Ydb.Topic;
 using Ydb.Topic.V1;

src/Ydb.Sdk/test/Ydb.Sdk.Ado.Tests/Internal/StatusCodeTestUtils.cs

@@ -1,4 +1,3 @@
-using Google.Protobuf.Collections;
 using Xunit;
 using Ydb.Issue;
 using Ydb.Sdk.Ado.Internal;