Remove PhpStorm EAP.app and Webstorm 9 EAP.app

The URLs are broken and the EAP are now closed. PhpStorm downloads [references to the stable release](https://confluence.jetbrains.com/display/PhpStorm/PhpStorm+Early+Access+Program) and the early access program is [closed for Webstorm](https://confluence.jetbrains.com/display/WI/WebStorm+EAP). 

> The Early Access Program for WebStorm 9 is now closed. 
> Please download a stable version of WebStorm 9.

This closes #617.