Craig Topper 9f55f29946 [Nios2] Remove Nios2 backend
As mentioned here http://lists.llvm.org/pipermail/llvm-dev/2019-January/129121.html This backend is incomplete and has not been maintained in several months.

Differential Revision: https://reviews.llvm.org/D56691

llvm-svn: 351231
2019-01-15 19:59:19 +00:00
..
2019-01-15 19:59:19 +00:00