kas/base.yml: remove unused layers

meta-qt5 and meta-openembedded are not actively being used in the
default builds, and are displaying some warnings because they are being
included.  Specifically, LICENSE errors in meta-qt5.  Given they are
unnecessary, remove them to avoid the noise.

Signed-off-by: Jon Mason <jon.mason@arm.com>

kas/base.yml

@@ -33,19 +33,6 @@ repos:
     layers:
       meta-poky:
 
-  meta-openembedded:
-    url: http://git.openembedded.org/meta-openembedded
-    path: layers/meta-openembedded
-    layers:
-      meta-oe:
-      meta-python:
-      meta-networking:
-      meta-perl:
-
-  meta-qt5:
-    url: https://github.com/meta-qt5/meta-qt5/
-    path: layers/meta-qt5
-
 env:
   BB_LOGCONFIG: ""
   BB_HASHSERVE: "auto"