rambi: Remove outdated comment

Change-Id: Ic555d23a9112677a784dd814601f8202d4d17261
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5691
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)

src/mainboard/google/rambi/romstage.c

@@ -92,7 +92,6 @@ void mainboard_romstage_entry(struct romstage_params *rp)
 	if (!spd_file)
 		die("SPD data not found.");
 
-	/* Both channels are always present. */
 	spd_content = get_spd_pointer(CBFS_SUBHEADER(spd_file),
 	                              ntohl(spd_file->len) / SPD_SIZE,
 	                              &dual_channel);