[libunwind] Silence warnings when __mips_hard_float is not defined

The warnings started showing up for me with c53c2058ffb8 which builds
Registers.hpp.

GitOrigin-RevId: abc238a3c736191cc24a517428ededf043d7d713
1 file changed
tree: 69fab55bb001d38fa9c851ff4be1c16a63878947
  1. cmake/
  2. docs/
  3. include/
  4. src/
  5. test/
  6. .clang-format
  7. CMakeLists.txt
  8. LICENSE.TXT