tools/counter: Remove unneeded semicolon

tools/counter: Remove unneeded semicolon

./tools/counter/counter_watch_events.c:233:3-4: Unneeded semicolon
./tools/counter/counter_watch_events.c:234:2-3: Unneeded semicolon
./tools/counter/counter_watch_events.c:333:2-3: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7782
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20231220005143.84987-1-yang.lee@linux.alibaba.com
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>