spec: fix spec that is closing chromedriver
spec: fix spec that is closing chromedriver

- Specs pass in Firefox
- Code review

Change-Id: Iad02b221aa535f2fee791adbdae11f9a19dff330
Reviewed-on: https://gerrit.instructure.com/75686
Tested-by: Jenkins
Reviewed-by: Pedro Fajardo <121b528f0c2f2e923ce3103793aca31b9a662ac4@instructure.com>
Reviewed-by: Landon Wilkins <e219b0c23c4256074cdfc7a23138e4f17200b08f@instructure.com>
Product-Review: Landon Wilkins <e219b0c23c4256074cdfc7a23138e4f17200b08f@instructure.com>
QA-Review: Landon Wilkins <e219b0c23c4256074cdfc7a23138e4f17200b08f@instructure.com>

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