Cleanup: lint fixes

(cherry picked from commit b639600d)
2 jobs for deploys/test-20210723 in 8 minutes and 57 seconds (queued for 6 seconds)
latest
Status Job ID Name Coverage
  Test
passed lint #104089

00:08:57

failed test #104090

00:05:27

 
Name Stage Failure
failed
test Test
$ npm run test:speed

> mattermost-webapp@0.0.1 test:speed
> cross-env NODE_ICU_DATA=node_modules/full-icu TZ=Etc/UTC jest

node: could not initialize ICU (check NODE_ICU_DATA or --icu-data-dir parameters)

Cleaning up file based variables
ERROR: Job failed: exit code 9