slepc is marked for autoremoval from testing

[Debian testing autoremoval watch]

slepc 3.7.3+dfsg1-3 is marked for autoremoval from testing on 2017-02-01

It (build-)depends on packages with these RC bugs:
848784: petsc: FTBFS: make[2]: *** No rule to make target '/<<BUILDDIR>>/petsc-3.7.4+dfsg1/x86_64-linux-gnu-real-debug/lib/petsc/conf/petscrules'. Stop.