This patch cleans up some debug code from 'board/lpd7a40x/flash.c' flash_erase().

CHANGELOG: * Patch by Paul Ruhland, 11 Jun 2004: Remove debug code from 'board/lpd7a40x/flash.c' - debugging a problem with flash_erase timing out immediately, a printf was added to display the start and stop values of the timer to the console. Timer functions were changed to see if it was particular to any one method. Problem turned out to be in the timer implemention which was fixed prior to submitting original board support patch. Unfortunately, backing out the above changes was overlooked in that patch. This patch restores the flash_erase function to its original state.