Remove extra connection deactivation.

Author: mdaigle

src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/ConnectionPool/WaitHandleDbConnectionPool.cs

@@ -1379,8 +1379,6 @@ public void PutObjectFromTransactedPool(DbConnectionInternal obj)
             Debug.Assert(obj != null, "null pooledObject?");
             Debug.Assert(obj.EnlistedTransaction == null, "pooledObject is still enlisted?");
 
-            obj.DeactivateConnection();
-
             // called by the transacted connection pool , once it's removed the
             // connection from it's list.  We put the connection back in general
             // circulation.