Merge remote-tracking branch 'remotes/origin/MAGETWO-31559' into develop

- remove extra code

Author: Kostiantyn Poida

app/code/Magento/Sales/sql/sales_setup/install-2.0.0.php

@@ -1647,12 +1647,6 @@
     '12,4',
     [],
     'Hidden Tax Canceled'
-)->addColumn(
-    'is_nominal',
-    \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
-    null,
-    ['nullable' => false, 'default' => '0'],
-    'Is Nominal'
 )->addColumn(
     'tax_refunded',
     \Magento\Framework\DB\Ddl\Table::TYPE_DECIMAL,