northbridge/amd/agesa/family15*: Remove commented code

Change-Id: If372655700c18340d51368a39392560f664f4a45
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16896
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
4 files changed