[llvm-mca] remove unused argument from method InstrBuilder::createInstrDescImpl.

We don't need to pass the instruction index to the method that constructs new
instruction descriptors.

No functional change intended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@331516 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed