Clean up eslint violations

[codecov-io]

Codecov Report

Merging #1301 into master will decrease coverage by 0.5%. The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #1301      +/-   ##
==========================================
- Coverage   93.68%   93.18%   -0.51%     
==========================================
  Files          44       44              
  Lines        4608     4680      +72     
  Branches      503      786     +283     
==========================================
+ Hits         4317     4361      +44     
- Misses        291      295       +4     
- Partials        0       24      +24

Impacted Files	Coverage Δ
browser/model/hyperv.js	100% <ø> (ø)	:arrow_up:
browser/services/data.js	83.17% <100%> (-0.58%)	:arrow_down:
browser/model/jbossfusekaraf.js	100% <100%> (ø)	:arrow_up:
browser/model/devstudio-autoinstall.js	97.29% <0%> (-2.71%)	:arrow_down:
browser/services/request.js	97.61% <0%> (-2.39%)	:arrow_down:
browser/model/helpers/downloader.js	95.53% <0%> (-1.68%)	:arrow_down:
browser/model/che.js	95% <0%> (-1.62%)	:arrow_down:
browser/services/platform.js	97.05% <0%> (-1.41%)	:arrow_down:
browser/pages/account/controller.js	98.61% <0%> (-1.39%)	:arrow_down:
browser/model/cdk.js	98.74% <0%> (-1.26%)	:arrow_down:
... and 25 more

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[dgolovin]

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