Remove the "new" folder

It must not be included in translations, because it contains files for
tests and/or for future development (mainly new Eeschema lib code) and
are therefore not used actively in Kicad code.

Author: nickoe

POTDIRS

@@ -6,7 +6,6 @@ cvpcb
 3d-viewer
 gerbview
 bitmap2component
-new
 polygon
 pcb_calculator
 potrace