[rdk-b][common][bsp][Remove useless app build]

[Description]
Remove useless app build

[Release-log]
N/A

diff --git a/recipes-core/packagegroups/packagegroup-rdk-oss-broadband.bbappend b/recipes-core/packagegroups/packagegroup-rdk-oss-broadband.bbappend
index 3a3baaf..701c11f 100644
--- a/recipes-core/packagegroups/packagegroup-rdk-oss-broadband.bbappend
+++ b/recipes-core/packagegroups/packagegroup-rdk-oss-broadband.bbappend
@@ -1,2 +1,2 @@
 RDEPENDS_packagegroup-rdk-oss-broadband_remove = "alljoyn"
-RDEPENDS_packagegroup-rdk-oss-broadband_append_dunfell = " zilker-sdk"
+RDEPENDS_packagegroup-rdk-oss-broadband_remove = " zilker-sdk"