Skip dapper targets if status is clean

In order to reduce the churn of unnecessary tasks, only perform these
make targets when we're not trying to clean the e2e tests.

Author: mkolesnik

Makefile

@@ -16,7 +16,9 @@ TARGETS := $(shell ls scripts | grep -v dapper-image)
 	@mv .dapper.tmp .dapper
 
 dapper-image: .dapper
+ifneq ($(status),clean)
 	./.dapper -m bind dapper-image
+endif
 
 shell:
 	./.dapper -m bind -s
@@ -25,7 +27,9 @@ $(TARGETS): .dapper dapper-image vendor/modules.txt
 	DAPPER_ENV="OPERATOR_IMAGE"  ./.dapper -m bind $@ --status $(status) --k8s_version $(version) --logging $(logging) --kubefed $(kubefed) --deploytool $(deploytool) --globalnet $(globalnet) --build_debug $(build_debug)
 
 vendor/modules.txt: .dapper go.mod
+ifneq ($(status),clean)
 	./.dapper -m bind vendor
+endif
 
 .DEFAULT_GOAL := ci