test: convert eight or so setup operations to REST

tests/rest_scripts/delete_bucket_policy.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+# Copyright 2024 Versity Software
+# This file is licensed under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http:#www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+source ./tests/rest_scripts/rest.sh
+
+# shellcheck disable=SC2153
+bucket_name="$BUCKET_NAME"
+
+current_date_time=$(date -u +"%Y%m%dT%H%M%SZ")
+
+cr_data=("DELETE" "/$bucket_name" "policy=")
+cr_data+=("host:$host")
+cr_data+=("x-amz-content-sha256:UNSIGNED-PAYLOAD" "x-amz-date:$current_date_time")
+build_canonical_request "${cr_data[@]}"
+
+# shellcheck disable=SC2119
+create_canonical_hash_sts_and_signature
+
+curl_command+=(curl -ks -w "\"%{http_code}\"" -X DELETE "https://$host/$bucket_name?policy"
+-H "\"Authorization: AWS4-HMAC-SHA256 Credential=$aws_access_key_id/$year_month_day/$aws_region/s3/aws4_request,SignedHeaders=$param_list,Signature=$signature\"")
+curl_command+=("${header_fields[@]}")
+curl_command+=(-o "$OUTPUT_FILE")
+# shellcheck disable=SC2154
+eval "${curl_command[*]}" 2>&1