target/mips: Remove unused MEMOP_IDX() macro

MEMOP_IDX() is unused since commit 948f88661c6 ("target/mips:
Use cpu_*_data_ra for msa load/store"), remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241014232235.51988-1-philmd@linaro.org>
1 file changed