closes CNVS-25693
Removes the span element (bad element to nest
block elements within). This makes jQueryUI
dialog tabbing work as expected for the equation
editor.
Also remove an extraneous require statement.
TEST PLAN:
1) Go to an RCE instance
2) try to enter an equation
3) in the dialog box, tab through all buttons and
the text editor to the "Insert Equation" button
4) you should be able to shift-tab back into
the text area and back into the button list.
5) make sure you can tab back to the "Basic" tab
and use arrow keys to change which tab we're focused
on
Change-Id: I92c149cf04281324c3ce3838c9fcbb16c25626da
Reviewed-on: https://gerrit.instructure.com/69707
Tested-by: Jenkins
Reviewed-by: Ryan Shaw <ryan@instructure.com>
QA-Review: August Thornton <august@instructure.com>
Product-Review: Ethan Vizitei <evizitei@instructure.com>