remove obsolete configurations (project-chip#34569)

* remove obsolete configurations

* Restyled by gn

---------

Co-authored-by: Restyled.io <commits@restyled.io>

config/beken/BUILD.gn

@@ -21,10 +21,7 @@ import("//build_overrides/chip.gni")
 #import("${chip_root}/build/chip/tests.gni")
 
 group("beken") {
-  deps = [
-    "${chip_root}/examples/lighting-app/beken:MatterApp",
-    "${chip_root}/src/lib",
-  ]
+  deps = [ "${chip_root}/src/lib" ]
 }
 group("default") {
   deps = [ ":beken" ]