fix: Backend startup with BASE_HREF set

Backend does not need BASE_HREF patching and crashes if a BASE_HREF is set in the
entrypoint.sh.

Fixes TomBursch#632

backend/entrypoint.sh

@@ -8,24 +8,9 @@ if [ ! -f "/proc/net/if_inet6" ]; then
     sed -i 's/\[::\]//g' /usr/src/kitchenowl/wsgi.ini
 fi
 
-# patch the web base href if requested
-if [ ! -z $BASE_HREF ]; then
-    if [[ $BASE_HREF == *"#"* ]]; then
-        echo "$ME: error: BASE_HREF must not contain character '#'" >&2
-        exit 1
-    elif [[ $BASE_HREF != "/"* ]]; then
-        echo "$ME: error: BASE_HREF must begin with a forward slash: /example/" >&2
-        exit 1
-    elif [[ $BASE_HREF != *"/" ]]; then
-        echo "$ME: error: BASE_HREF must end with a forward slash: /example/" >&2
-        exit 1
-    fi
-    sed -i "s#<base href=\"/\">#<base href=\"${BASE_HREF}\">#g" /var/www/web/kitchenowl/index.html
-fi
-
 mkdir -p $STORAGE_PATH/upload
 flask db upgrade
 if [ "${SKIP_UPGRADE_DEFAULT_ITEMS}" != "true" ] && [ "${SKIP_UPGRADE_DEFAULT_ITEMS}" != "True" ]; then
     python upgrade_default_items.py
 fi
-uwsgi "$@"
+uwsgi "$@"