target/arm: Remove XScale and iWMMXt translate.c code

target/arm: Remove XScale and iWMMXt translate.c code

Remove all the translator code that is accessible only via
ARM_FEATURE_XSCALE or ARM_FEATURE_IWMMXT.  This includes the
xscale-only cp15_cpar TB flags and cpu_{V0,V1,M0} TCG temps.

The no-longer-used helper functions will be removed in a separate
commit.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250828140422.3271703-3-peter.maydell@linaro.org