Fix misspelling of rootfs/resourcifer

rootfs/resourcifier/Makefile

@@ -18,14 +18,9 @@ IMAGE ?= resourcifier
 include ../include.mk
 
 .PHONY: extras
-extras: expansion kubectl
+extras: kubectl
-
-.PHONY: expansion
-expansion:
-	cp -R ../../expansion ./opt
 
 .PHONY: kubectl
 kubectl:
 	curl -fsSL -o bin/kubectl https://storage.googleapis.com/kubernetes-release/release/${KUBE_VERSION}/bin/linux/amd64/kubectl
 	chmod +x bin/kubectl
-