diff --git a/meta-arm/recipes-kernel/linux/linux-yocto-dev.bbappend b/meta-arm/recipes-kernel/linux/linux-yocto-dev.bbappend
deleted file mode 100644
index c7742f87..00000000
--- a/meta-arm/recipes-kernel/linux/linux-yocto-dev.bbappend
+++ /dev/null
@@ -1,4 +0,0 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-
-SRC_URI_append_qemuarm64-secureboot = " file://tee.cfg"
-
diff --git a/meta-arm/recipes-kernel/linux/linux-yocto-dev/tee.cfg b/meta-arm/recipes-kernel/linux/linux-yocto-dev/tee.cfg
deleted file mode 100644
index 7415e181..00000000
--- a/meta-arm/recipes-kernel/linux/linux-yocto-dev/tee.cfg
+++ /dev/null
@@ -1,4 +0,0 @@
-CONFIG_HW_RANDOM_OPTEE=m
-CONFIG_TEE=m
-CONFIG_OPTEE=m
-CONFIG_OPTEE_SHM_NUM_PRIV_PAGES=10