ppc4xx: Remove confusing comment

This is not the sequoia board.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>

board/esd/pmc440/config.mk

@@ -20,10 +20,6 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 # MA 02111-1307 USA
 #
-#
-# AMCC 440EPx Reference Platform (Sequoia) board
-#
-
 sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
 
 ifndef TEXT_BASE