soc/dmp: Drop leftover file

Change-Id: I6994b48b48fb7177b9ae32825dcd9af099b85410
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26808
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/soc/dmp/Kconfig b/src/soc/dmp/Kconfig
deleted file mode 100644
index 46e5c6d..0000000
--- a/src/soc/dmp/Kconfig
+++ /dev/null
@@ -1,2 +0,0 @@
-# Load all chipsets
-source "src/soc/dmp/*/Kconfig"