serprog.c: Remove unneeded 'else'

'else' is not needed after a 'break' or 'return'.

Change-Id: I9015020889c25ecbd391a18f56f99affc8ea307d
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/33348
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
1 file changed