Hexagon (target/hexagon) Eliminate uses of log_pred_write function

Hexagon (target/hexagon) Eliminate uses of log_pred_write function

These instructions have implicit writes to registers, so we don't
want them to be helpers when idef-parser is off.

The following instructions are overriden
    S2_cabacdecbin
    SA1_cmpeqi

Remove the log_pred_write function from op_helper.c
Remove references in macros.h

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230427230012.3800327-8-tsimpson@quicinc.com>