flashrom.c: Delete obsolete comment

Change-Id: Ibd53fe34c05f87d7ecc0d6eee6463f9da3a174d4
Signed-off-by: Simon Buhrow <simon.buhrow@posteo.de>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/58742
Original-Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/71435
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/flashrom.c b/flashrom.c
index 2837b0d..2872a11 100644
--- a/flashrom.c
+++ b/flashrom.c
@@ -1325,7 +1325,6 @@
  * be erased.
  *
  * @param flashctx Flash context to be used.
- * @param buffer   Buffer of full chip size to read into.
  * @return 0 on success,
  *	   1 if all available erase functions failed.
  */