Bug#1076502: RM: gcc-9 and gcc-9-*, superseded by newer versions

[Matthias Klose]

Package: ftp.debian.org

Please remove gcc-9 related packages from unstable, superseded by newer 
versions:

  gcc-9
  gcc-9-doc
  gcc-9-cross
  gcc-9-cross-ports
  gcc-9-cross-mipsen