makefile: clean target remove entire vendor dir
makefile: clean target remove entire vendor dir

stu-gott/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt,fabiand/kubevirt,fabiand/kubevirt,rmohr/kubevirt,stu-gott/kubevirt,davidvossel/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt,rmohr/kubevirt,stu-gott/kubevirt,stu-gott/kubevirt