message: Create Pool Tests work.  removed obsolete tests
diff: @@ -11,10 +11,11 @@ namespace Hyperledger.Indy.Test.PoolTests
  [TestMethod]
  public async Task TestCreatePoolWorksForNullConfig()
  {
  - var file = File.Create("testCreatePoolWorks.txn");
  + string poolConfigName = "testCreatePoolWorks";
  + var file = File.Create(string.Format("{0}.txn", poolConfigName));
  PoolUtils.WriteTransactions(file, 1);
  - await Pool.CreatePoolLedgerConfigAsync("testCreatePoolWorks", null);
  + await Pool.CreatePoolLedgerConfigAsync(poolConfigName, null);
  }
  [TestMethod]
  