fix the large avatar displaying in the roster/people/user table
fix the large avatar displaying in the roster/people/user table

Fixes: CNVS-33565

test plan;
- as an admin navigate to one of your courses
- select the "people" link from the sub-nav
- the user avatars should now be small again :D

example before: http://www.screencast.com/t/nhtK0SkG
example fixed: http://www.screencast.com/t/a8YaEggNXv7

Change-Id: I10ac996bb7b5d6f01ab35a84394267c06412e1bd
Reviewed-on: https://gerrit.instructure.com/96297
Tested-by: Jenkins
Reviewed-by: Jennifer Stern <7e594e5cba47371ac9ee694a84b9d94f9f6ec815@instructure.com>
QA-Review: Dan Sasaki
Product-Review: Pam Hiett <7b533437add1ce4ea4ed79979fa88e0e484e554b@instructure.com>

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