Bug#938854: RM xpilot-ng

[Scott Talbert]

Control: reassign -1 ftp.debian.org
Control: retitle -1 RM: xpilot-ng -- RoQA; dead upstream; unmaintained; low 
popcon; blocking py2 removal
This package hasn't had a maintainer upload since 2013.  It's dead 
upstream as well.