Remove old deep-copy generator.

Author: wojtek-t

cmd/gendeepcopy/deep_copy.go

@@ -104,7 +104,6 @@ kube::golang::test_targets() {
     cmd/mungedocs
     cmd/genbashcomp
     cmd/genconversion
-    cmd/gendeepcopy
     cmd/genswaggertypedocs
     examples/k8petstore/web-server/src
     github.com/onsi/ginkgo/ginkgo

hack/after-build/update-generated-deep-copies.sh

@@ -52,7 +52,6 @@ fi
 
 BASH_TARGETS="codecgen
 	generated-conversions
-	generated-deep-copies
 	generated-docs
 	generated-swagger-docs
 	swagger-spec