revert version upgrade and just rely on docs

Signed-off-by: Andre Marcelo-Tanner <[email protected]>

test/kustomize/test.sh

@@ -1,41 +1,10 @@
 #!/bin/bash
 
-PROJECT_ROOT=$(cd $(dirname ${BASH_SOURCE})/../..; pwd)
-DIST_PATH="${PROJECT_ROOT}/dist"
-
-kustomize_cmd="kustomize"
-kustomize_version=v5.2.1
-kustomize_major_version=v5
-
-# check if local kustomize is installed
-if test -x "${DIST_PATH}/kustomize"; then
-    kustomize_cmd="${DIST_PATH}/kustomize"
-    # we are unable to check local version of kustomize as it returns (devel) if installs via go install
-else
-    # check if kustomize in path exists and is the expected version
-    install_kustomize=false
-    if ! command -v kustomize &> /dev/null; then
-        echo "kustomize not found in path."
-        install_kustomize=true
-    elif ! kustomize version | grep -q "${kustomize_version}"; then
-        echo "kustomize version is not expected."
-        install_kustomize=true
-    fi
-
-    # install local kustomize if needed
-    if ${install_kustomize}; then
-        echo "Installing local version ${kustomize_version} to ${DIST_PATH}/kustomize";
-        GOBIN="${DIST_PATH}" GO111MODULE=on go install "sigs.k8s.io/kustomize/kustomize/${kustomize_major_version}@${kustomize_version}"
-        kustomize_cmd="${DIST_PATH}/kustomize"
-    fi
-fi
-echo "Using kustomize: ${kustomize_cmd}"
-
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 
 for i in `ls ${DIR}/*/kustomization.yaml`; do
     dir_name=$(dirname $i)
-    diff_out=$(diff ${dir_name}/expected.yaml <("${kustomize_cmd}" build ${dir_name} --load-restrictor=LoadRestrictionsNone))
+    diff_out=$(diff ${dir_name}/expected.yaml <(kustomize build ${dir_name} --load-restrictor=LoadRestrictionsNone))
     if [[ $? -ne 0 ]]; then
         echo "${i} had unexpected diff:"
         echo "${diff_out}"