Auto merge of #18187 - ferjm:unused.imports, r=emilio

Remove unused imports from stylist tests

- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors

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bors-servo 2017-08-22 08:46:55 -05:00 committed by GitHub
commit eb80e8f20a

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