[DAEMON-188] appcd-plugin-windows: Remove dummy device when we have more than one device

Description

windowslib inserts a dummy device on detection { name: 'Device', udid: 0, index: 0, wpsdk: null, type: 'device' } even when no devices are detected, when running ti info because titanium does a top level windowslib.detect vs a windowslib.devices.detect, it doesnt have this device as windowslib will remove. We need to build in logic to the device detection to remove the dummy device if we have more than one device I think windowslib does it somewhere around here https://github.com/appcelerator/windowslib/blob/master/lib/wptool.js#L316-L335