treewide [Kconfig]: Remove useless comment

Change-Id: I3dafffa61f4fe6089fd11ef6579626aff8088df5
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50185
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/mainboard/google/veyron/Kconfig b/src/mainboard/google/veyron/Kconfig
index 1d3496c..97444d8 100644
--- a/src/mainboard/google/veyron/Kconfig
+++ b/src/mainboard/google/veyron/Kconfig
@@ -1,6 +1,6 @@
 ## SPDX-License-Identifier: GPL-2.0-only
 
-config BOARD_GOOGLE_VEYRON # dummy option to be selected by variant boards
+config BOARD_GOOGLE_VEYRON
 	def_bool n
 
 if BOARD_GOOGLE_VEYRON