specs for deleting a file/folder

closes: CNVS-14726

we need to figure out how to load react-with-addons.js when we
are running specs but just react.js outside of tests

Change-Id: I7fb2b0be73a0b9be5266c0a5d9a720dfba0146f9
Reviewed-on: https://gerrit.instructure.com/39187
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Jason Madsen <jmadsen@instructure.com>
Product-Review: Ryan Shaw <ryan@instructure.com>
QA-Review: Ryan Shaw <ryan@instructure.com>