Remove duplicate kernel config fragments

Enable system specific modules in their respective layers.

Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-openbmc-bsp/meta-aspeed/meta-ast2400/recipes-kernel/linux/linux-obmc_%.bbappend b/meta-openbmc-bsp/meta-aspeed/meta-ast2400/recipes-kernel/linux/linux-obmc_%.bbappend
index bb6f06c..6d7ae27 100644
--- a/meta-openbmc-bsp/meta-aspeed/meta-ast2400/recipes-kernel/linux/linux-obmc_%.bbappend
+++ b/meta-openbmc-bsp/meta-aspeed/meta-ast2400/recipes-kernel/linux/linux-obmc_%.bbappend
@@ -1,2 +1,2 @@
 FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-SRC_URI += "file://defconfig file://hwmon.cfg"
+SRC_URI += "file://defconfig"