revert changes

Author: KirillKurdyukov

src/Ydb.Sdk/src/Ado/YdbConnection.cs

@@ -122,14 +122,6 @@ public override async Task OpenAsync(CancellationToken cancellationToken)
                 $"(currently {ConnectionStringBuilder.CreateSessionTimeout} seconds) in your connection string.", e
             );
         }
-        catch (YdbException e) when (e.Code == StatusCode.ClientTransportTimeout)
-        {
-            throw new YdbException(e.Code,
-                $"The connection pool has been exhausted, either raise 'MaxSessionPool' " +
-                $"(currently {ConnectionStringBuilder.MaxSessionPool}) or 'CreateSessionTimeout' " +
-                $"(currently {ConnectionStringBuilder.CreateSessionTimeout} seconds) in your connection string.", e
-            );
-        }
 
         OnStateChange(ClosedToOpenEventArgs);
 

src/Ydb.Sdk/test/Ydb.Sdk.Ado.Benchmarks/README.md

@@ -23,7 +23,6 @@ Apple M2 Pro, 1 CPU, 12 logical and 12 physical cores
 [Host]     : .NET 8.0.2 (8.0.224.6711), Arm64 RyuJIT AdvSIMD
 DefaultJob : .NET 8.0.2 (8.0.224.6711), Arm64 RyuJIT AdvSIMD
 
-
 # YDB .NET SDK Session Pool V1 On Semaphore-Based
 
 | Method                              |             Mean |           Error |          StdDev | Completed Work Items | Lock Contentions |      Gen0 |     Gen1 |  Allocated |