[FIX] web: remove bootstrap sourceMappingURL

addons/web/static/lib/bootstrap/css/bootstrap.css

addons/web/static/lib/bootstrap/js/alert.js

addons/web/static/lib/bootstrap/js/button.js

addons/web/static/lib/bootstrap/js/carousel.js

addons/web/static/lib/bootstrap/js/collapse.js

addons/web/static/lib/bootstrap/js/dropdown.js

addons/web/static/lib/bootstrap/js/index.js

addons/web/static/lib/bootstrap/js/modal.js

addons/web/static/lib/bootstrap/js/popover.js

addons/web/static/lib/bootstrap/js/scrollspy.js

addons/web/static/lib/bootstrap/js/tab.js

addons/web/static/lib/bootstrap/js/tooltip.js

addons/web/static/lib/bootstrap/js/util.js