Remove imagebuild/common, it's not longer used by IPA-builder

Change-Id: Ia21690955b25b233a7b2e861abb5ac02653099f6
Depends-On: https://review.opendev.org/688911

imagebuild/common/extract_upper_constraints_from_tox_ini.sh

@@ -1,9 +0,0 @@
-#!/bin/bash
-# NOTE(mmitchell): This extracts the URL defined as the default value for
-#                  UPPER_CONSTRAINTS_FILE in tox.ini. This is used by image
-#                  builders to avoid duplicating the default value in multiple
-#                  scripts. This is specially done to leverage the release
-#                  tools that automatically update the tox.ini when projects
-#                  are released.
-sed -n 's/^.*{env:UPPER_CONSTRAINTS_FILE\:\([^}]*\)}.*$/\1/p' $1 | head -n1
-

imagebuild/common/generate_upper_constraints.sh

@@ -1,87 +0,0 @@
-#!/bin/bash -eu
-
-SCRIPT_NAME=$(basename $0)
-COMMON_ROOT=$(dirname $0)
-DESTINATION="$1"
-TOX_INI_UPPER_CONSTRAINT_URL="$(${COMMON_ROOT}/extract_upper_constraints_from_tox_ini.sh ${COMMON_ROOT}/../../tox.ini)"
-
-copy() {
-    local src=$1
-    local destination=$2
-
-    if test -z "${src}"; then
-        return 1
-    fi
-
-    if test -e "${src}"; then
-        log "File '${src}' exists. Using as upper-constraints."
-        cp "${src}" "${destination}"
-    else
-        log "File '${src}' not found. Skipping local file strategy."
-        return 1
-    fi
-    return 0
-}
-
-download() {
-    local url=$1
-    local destination=$2
-
-    if test -z "${url}"; then
-        return 1
-    else
-        log "Downloading from '${url}'"
-        curl -L ${url} -o "${destination}"
-    fi
-    return 0
-}
-
-log() {
-    echo "${SCRIPT_NAME}: ${@}"
-}
-
-fail() {
-    log ${@}
-    exit 1
-}
-
-upper_constraints_is_not_null() {
-    test "${UPPER_CONSTRAINTS_FILE:-""}" != ""
-}
-
-copy_uc() {
-    copy "${UPPER_CONSTRAINTS_FILE:-""}" "${DESTINATION}"
-}
-
-download_uc() {
-    download "${UPPER_CONSTRAINTS_FILE:-""}" "${DESTINATION}"
-}
-
-copy_new_requirements_uc() {
-    if [ -e "/opt/stack/new/requirements" ]; then
-        copy "/opt/stack/new/requirements/upper-constraints.txt" "${DESTINATION}"
-    elif [ -e "/opt/stack/requirements" ]; then
-        copy "/opt/stack/requirements/upper-constraints.txt" "${DESTINATION}"
-    else
-        log "No local requirements repository, will download upper-constraints"
-        # Allow the caller to handle the failure
-        return 1
-    fi
-}
-
-download_from_tox_ini_url() {
-    log "tox.ini indicates '${TOX_INI_UPPER_CONSTRAINT_URL}' as fallback."
-    download "${TOX_INI_UPPER_CONSTRAINT_URL}" "${DESTINATION}"
-}
-
-log "Generating local constraints file..."
-
-if upper_constraints_is_not_null; then
-    log "UPPER_CONSTRAINTS_FILE is defined as '${UPPER_CONSTRAINTS_FILE:-""}'"
-    copy_uc || download_uc || fail "Failed to copy or download file indicated in UPPER_CONSTRAINTS_FILE."
-else
-    log "UPPER_CONSTRAINTS_FILE is not defined. Using fallback strategies."
-
-    copy_new_requirements_uc || \
-    download_from_tox_ini_url || fail "Failed to download upper-constraints.txt from '${TOX_INI_UPPER_CONSTRAINT_URL}'."
-fi