Documentation: Replace dead link for binfmt_misc

Patch by Thomas Schwinge.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177876 91177308-0d34-0410-b5e6-96231b3b80d8
Remove assert. There may be target-dependent attributes left.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177878 91177308-0d34-0410-b5e6-96231b3b80d8