Remove all VMware MKS console-related records from SettingSchanges

https://bugzilla.redhat.com/show_bug.cgi?id=1513592

db/migrate/20180130165200_drop_webmks.rb

@@ -0,0 +1,10 @@
+class DropWebmks < ActiveRecord::Migration[5.0]
+  class MiqServer < ActiveRecord::Base; end
+  class SettingsChange < ActiveRecord::Base; end
+
+  def up
+    say_with_time "Remove all VMware MKS console-related records from settings" do
+      SettingsChange.where(:key => '/server/remote_console_type', :value => 'MKS').delete_all
+    end
+  end
+end

spec/migrations/20180130165200_drop_webmks_spec.rb

@@ -0,0 +1,17 @@
+require_migration
+
+describe DropWebmks do
+  let(:server_stub)   { migration_stub(:MiqServer) }
+  let(:settings_stub) { migration_stub(:SettingsChange) }
+
+  migration_context :up do
+    let(:server) { server_stub.create }
+
+    it 'resets the remote_console_type to default' do
+      settings_stub.create(:resource_id => server.id, :resource_type => server.class, :key => '/server/remote_console_type', :value => 'MKS')
+      migrate
+
+      expect(settings_stub.where(:key => '/server/remote_console_type', :value => 'MKS').count).to be_zero
+    end
+  end
+end