diff --git a/hack/ginkgo-e2e.sh b/hack/ginkgo-e2e.sh
index d892786debc..8c0aeff24a4 100755
--- a/hack/ginkgo-e2e.sh
+++ b/hack/ginkgo-e2e.sh
@@ -38,12 +38,6 @@ GINKGO_NO_COLOR=${GINKGO_NO_COLOR:-n}
 # If 'y', will rerun failed tests once to give them a second chance.
 GINKGO_TOLERATE_FLAKES=${GINKGO_TOLERATE_FLAKES:-n}
 
-# The number of tests that can run in parallel depends on what tests
-# are running and on the size of the cluster. Too many, and tests will
-# fail due to resource contention. 25 is a reasonable default for a
-# 3-node (n1-standard-1) cluster running all fast, non-disruptive tests.
-GINKGO_PARALLELISM=${GINKGO_PARALLELISM:-25}
-
 : ${KUBECTL:="${KUBE_ROOT}/cluster/kubectl.sh"}
 : ${KUBE_CONFIG_FILE:="config-test.sh"}
 
@@ -157,9 +151,6 @@ export PATH=$(dirname "${e2e_test}"):"${PATH}"
   ${MASTER_OS_DISTRIBUTION:+"--master-os-distro=${MASTER_OS_DISTRIBUTION}"} \
   ${NODE_OS_DISTRIBUTION:+"--node-os-distro=${NODE_OS_DISTRIBUTION}"} \
   ${NUM_NODES:+"--num-nodes=${NUM_NODES}"} \
-  ${CLUSTER_IP_RANGE:+"--cluster-ip-range=${CLUSTER_IP_RANGE}"} \
-  ${E2E_CLEAN_START:+"--clean-start=true"} \
-  ${E2E_MIN_STARTUP_PODS:+"--minStartupPods=${E2E_MIN_STARTUP_PODS}"} \
   ${E2E_REPORT_DIR:+"--report-dir=${E2E_REPORT_DIR}"} \
   ${E2E_REPORT_PREFIX:+"--report-prefix=${E2E_REPORT_PREFIX}"} \
   "${@:-}"