Somewhere along the patch handling path, both the old "printk(KERN_ALERT
....)" and the new "pr_alert(...)" were retained, leading to the
duplicate printing of "PC:".

Drop the old one.

Fixes: eaabf98b ("sh: fault: modernize printing of kernel messages")
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NRich Felker <dalias@libc.org>