Make sure tha tonly the container is build (#2005)

Author: johscheuer

Makefile

@@ -180,7 +180,7 @@ ${GENERATED_GO}: ${GO_SRC} hack/boilerplate.go.txt ${CONTROLLER_GEN}
 	$(CONTROLLER_GEN) object:headerFile=./hack/boilerplate.go.txt paths="./..."
 
 # Build the container image
-container-build: test_if_changed
+container-build:
 	$(BUILDER) build --build-arg=TAG=${TAG} ${img_build_args} $(BUILDER_ARGS) -t ${IMG} .
 
 # Push the container image