openocd: revert workarounds for 'expr' syntax change
With OpenOCD v0.12.0 released, drop the workarounds for 'expr'
syntax change by reverting:
- commit
320043c054dc ("openocd: fix for polling during "expr"
computation");
- commit
c7eaaf620488 ("openocd: prepare for jimtcl 0.81 'expr'
syntax change").
Replace the call to target_call_timer_callbacks_now() with call
to target_call_timer_callbacks().
Change-Id: Iae5afc50e3f688e11176a52648efc9a6577a9a11
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7405
Tested-by: jenkins