target/mips: Drop left-over comment about Jazz machine

Commit 3803b6b427 ("target/mips: Fold jazz behaviour into
mips_cpu_do_transaction_failed") removed update on TCGCPUOps
and commit 119065574d ("hw/core: Constify TCGCPUOps") made
it const. Remove the now irrelevant comment.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241115152053.66442-2-philmd@linaro.org>

target/mips/cpu.c

@@ -546,10 +546,6 @@ static const Property mips_cpu_properties[] = {
 
 #ifdef CONFIG_TCG
 #include "hw/core/tcg-cpu-ops.h"
-/*
- * NB: cannot be const, as some elements are changed for specific
- * mips hardware (see hw/mips/jazz.c).
- */
 static const TCGCPUOps mips_tcg_ops = {
     .initialize = mips_tcg_init,
     .synchronize_from_tb = mips_cpu_synchronize_from_tb,