Remove unused variable.

Author: darrenklein

test/ecto_adapters_dynamodb/migration_test.exs

@@ -38,7 +38,6 @@ defmodule Ecto.Adapters.DynamoDB.Migration.Test do
 
     test "create: provisioned table" do
       result = Ecto.Migrator.run(TestRepo, @migration_path, :up, step: 1)
-      table_info = Ecto.Adapters.DynamoDB.Info.table_info("cat")
 
       assert length(result) == 1
     end