Remove vendor/modernizr.js nothing uses it
Remove vendor/modernizr.js nothing uses it

closes: CNVS-36234

I did a global grep for this and couldn’t find 
anything that uses it.

Test plan:
Try to think of something that uses this, 
if you can, -2 this.

Change-Id: I82ef54ef653979299a5f33b863bee2159b910ecf
Reviewed-on: https://gerrit.instructure.com/108142
Tested-by: Jenkins
Reviewed-by: Clay Diffrient <9dff2e5c98626d20d2848250c411e8009465bb87@instructure.com>
Product-Review: Ryan Shaw <ea3cd978650417470535f3a4725b6b5042a6ab59@instructure.com>
QA-Review: Ryan Shaw <ea3cd978650417470535f3a4725b6b5042a6ab59@instructure.com>

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