diff --git a/hack/generate-knative.sh b/hack/generate-knative.sh
index 931e0a425c..3d5cd7e73e 100755
--- a/hack/generate-knative.sh
+++ b/hack/generate-knative.sh
@@ -14,32 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-set -o errexit
-set -o nounset
-set -o pipefail
-
-# generate-groups generates everything for a project with external types only, e.g. a project based
-# on CustomResourceDefinitions.
-
-if [ "$#" -lt 4 ] || [ "${1}" == "--help" ]; then
-  cat <<EOF
-Usage: $(basename $0) <generators> <client-package> <apis-package> <groups-versions> ...
-
-  <generators>        the generators comma separated to run (deepcopy,defaulter,client,lister,informer) or "all".
-  <client-package>    the client package dir (e.g. github.com/example/project/pkg/clientset).
-  <apis-package>      the external types dir (e.g. github.com/example/api or github.com/example/project/pkg/apis).
-  <groups-versions>   the groups and their versions in the format "groupA:v1,v2 groupB:v1 groupC:v2", relative
-                      to <api-package>.
-  ...                 arbitrary flags passed to all generator binaries.
-
-
-Examples:
-  $(basename $0) all             github.com/example/project/pkg/client github.com/example/project/pkg/apis "foo:v1 bar:v1alpha1,v1beta1"
-  $(basename $0) injection,foo   github.com/example/project/pkg/client github.com/example/project/pkg/apis "foo:v1 bar:v1alpha1,v1beta1"
-EOF
-  exit 0
-fi
-
 GENS="$1"
 CLIENT_PKG="$2"
 APIS_PKG="$3"
@@ -59,7 +33,6 @@ for GVs in ${GROUPS_WITH_VERSIONS}; do
   done
 done
 
-
 if grep -qw "injection" <<<"${GENS}"; then
   if [[ -z "${OUTPUT_PKG:-}" ]]; then
     OUTPUT_PKG="${CLIENT_PKG}/injection"
@@ -90,3 +63,4 @@ if grep -qw "injection" <<<"${GENS}"; then
     --output-package ${OUTPUT_PKG} \
     "$@"
 fi
+