RFS: hepmc -- [RC] on behalf of multiarch-support removal

[Lumin <cdluminate@gmail.com>]

Hi,

Can anybody sponsor my team upload for "hepmc"? Thanks.

https://salsa.debian.org/science-team/hepmc
 - commit: cb8aa811bb7e8b5be46107ca9992a5ad58df73cb
 - upload: unstable

changes:

hepmc (2.06.09-2) unstable; urgency=medium

  * Team Upload.
  * Replace B-D-I:texlive-math-extra with texlive,texlive-science.
    The original one no longer exists in archive. (Closes: #867090)
  * Upgrade from Debhelper compat level 7 to level 11.
  * Overhaul debian/rules in debhelper 11 style.
  * Patch src/IO_AsciiParticles.cc to amend floating point format.
    The FTBFS is due to floatpoint printing format mismatch during test,
    triggered by GCC-5's change. (+ gcc-5plus.patch) (Closes: #777901)
  * Deprecate DM-Upload-Allowed field.
  * Strip useless build-dependencies.
  * Annotate Upstream-Git URI in control.
  * Point Vcs-* fields to Salsa due to Alioth deprecation.