Remove dependency on tslint and grunt-tslint

[agubler]

Type: feature

The following has been addressed in the PR:

• [x] There is a related issue
• [x] All code matches the style guide
• [x] Unit or Functional tests are included in the PR

Description:

Remove explicit dependency on tslint and grunt-tslint as this is now provided by grunt-dojo2. Also cleans up rules that are not compatible with tslint 4+ in preparation for the dependency update in grunt-dojo2.

Will fail until https://github.com/dojo/grunt-dojo2/pull/121 has been merged and version 2.0.0-beta.36 is released

Related to https://github.com/dojo/meta/issues/159

[codecov[bot]]

Codecov Report

Merging #307 into master will not change coverage. The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #307   +/-   ##
=======================================
  Coverage   93.88%   93.88%           
=======================================
  Files          39       39           
  Lines        2144     2144           
  Branches      408      408           
=======================================
  Hits         2013     2013           
  Misses         52       52           
  Partials       79       79

Impacted Files	Coverage Δ
src/async/iteration.ts	93.45% <ø> (ø)	:arrow_up:
src/QueuingEvented.ts	96.87% <100%> (ø)	:arrow_up:
src/MultiMap.ts	100% <100%> (ø)	:arrow_up:
src/request/providers/node.ts	88.03% <100%> (ø)	:arrow_up:

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