Get rid of hack/after-build scripts

The build is now fast enough to not need them.

hack/verify-generated-swagger-docs.sh

@@ -25,4 +25,36 @@ kube::golang::setup_env
 
 "${KUBE_ROOT}/hack/build-go.sh" cmd/genswaggertypedocs
 
-"${KUBE_ROOT}/hack/after-build/verify-generated-swagger-docs.sh" "$@"
+# Find binary
+genswaggertypedocs=$(kube::util::find-binary "genswaggertypedocs")
+
+if [[ ! -x "$genswaggertypedocs" ]]; then
+  {
+    echo "It looks as if you don't have a compiled genswaggertypedocs binary"
+    echo
+    echo "If you are running from a clone of the git repo, please run"
+    echo "'./hack/build-go.sh cmd/genswaggertypedocs'."
+  } >&2
+  exit 1
+fi
+
+DIFFROOT="${KUBE_ROOT}/pkg"
+TMP_DIFFROOT="${KUBE_ROOT}/_tmp/pkg"
+_tmp="${KUBE_ROOT}/_tmp"
+
+mkdir -p "${_tmp}"
+cp -a "${DIFFROOT}" "${TMP_DIFFROOT}"
+
+"${KUBE_ROOT}/hack/update-generated-swagger-docs.sh"
+echo "diffing ${DIFFROOT} against freshly generated swagger type documentation"
+ret=0
+diff -Naupr -I 'Auto generated by' "${DIFFROOT}" "${TMP_DIFFROOT}" || ret=$?
+cp -a "${TMP_DIFFROOT}" "${KUBE_ROOT}/"
+rm -rf "${_tmp}"
+if [[ $ret -eq 0 ]]
+then
+  echo "${DIFFROOT} up to date."
+else
+  echo "${DIFFROOT} is out of date. Please run hack/update-generated-swagger-docs.sh"
+  exit 1
+fi