Breaking: #66190 - Remove flash and chart from ExtJS 

See forge#66190

Description 

The flash and chart module is removed from ExtJS. In order to reduce ExtJS components this is a first step.

Impact 

Extensions which use the flash and chart module from ExtJS will not work anymore.

Affected Installations 

Installations that use flash or chart module of ExtJS.

Migration 

Don't use cores ExtJS anymore, as we migrate away from it. Use other JS frameworks which implement such functionality for you.