Revert "config: catch and report unexpected arguments"

This reverts commit 665372c19d.

the kali test failed due to their script using a hack of passing along a
custom option after an early terminator through to their auto/config file.
the change implemented here was valuable, but i'll have to look into
revising things to work with what Kali is doing.

Gbp-Dch: Ignore

scripts/build/config

@@ -822,15 +822,6 @@ Local_arguments ()
 				;;
 		esac
 	done
-
-	# Any remaining arguments should be reported as an unexpected arguments error.
-	if [ $# -ne 0 ]; then
-		local ARG
-		for ARG in "${@}"; do
-			Echo_error "Unexpected argument found: %s" "${ARG}"
-		done
-		exit 1
-	fi
 }
 
 # Processing args such that we have a value for --config if given