Recorder: Remove screen recorder

* R (11) has it's own screen recorder, therefore we don't need
  to provide yet another one in our own app
* Remove all traces of screen recording from the app
* Change the design so it can be used as a standalone audio
  recorder

Co-authored-by: 2bllw8 <2bllw8@gmail.com>
Change-Id: I5aa9e74a2ca2c03745a878eda1c02e50080fa7f8