refs: CNVS-28781
...and remove fancy conditional comment
thing that adds the .ie & .ie9 classes to the page.
And now that we know that IE9 will never be using
the site, remove some css that specifically targeted it
test plan:
* try go to to canvas in ie9,
* it should redirect you to a "not supported" page
Change-Id: Ia4e020afeebe13bad730d7591736fd4e141bf387
Reviewed-on: https://gerrit.instructure.com/77318
Reviewed-by: Simon Williams <simon@instructure.com>
Product-Review: Chris Hart <chart@instructure.com>
QA-Review: Myller de Araujo <myller@instructure.com>
Tested-by: Jenkins