giveback dolfin on mips64el

[Drew Parsons]

mips64el has randomly made a test error in the latest dolfin build. But 
demo_auto-adaptive-navier-stokes_serial passes when building on the 
porterbox, or when run manually.  Could you please schedule dolfin for a 
second buildd attempt on mip64el?

gb dolfin_2018.1.0.post1-14 . mips64el
Thanks,
Drew