tcg: Remove TCG_TARGET_HAS_{s}extract_{i32,i64}

Make extract and sextract "unconditional" in the sense
that the opcodes are always present.  Rely instead on
TCG_TARGET_HAS_{s}extract_valid, now always defined.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
14 files changed