kallsyms: Remove unneeded semicolon

./kernel/kallsyms_selftest.c:136:2-3: Unneeded semicolon

Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3208
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>