MIPS: Remove unused R5432_CP0_INTERRUPT_WAR

R5432_CP0_INTERRUPT_WAR is defined as 0 for every system we support, and
so the workaround is never used. Remove the dead code.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
14 files changed