When a function that is introduced by an arrow, don't insert a return
statement and its required curly braces when not needed.
Bad:
const f = () => {
return 1;
}
Good:
const f = () => 1
This patch consists of a change to .eslintrc, and automatically fixed
files (via eslint --fix).
Change-Id: I6afc3f91ee2cc44ae149e482d5633876c85c3cff
16514bf462