Remove use of componentWillReceiveProps() in UserProfileEdit

[willdurand]

Fixes mozilla/addons#12595

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This is similar to other patches.

It is needed to upgrade Enzyme to 3.9.0 which, in turn, should allow us to use getDerivedStateFromProps() in this component to get rid of the setState calls in componentDidUpdate() (there is a known Enzyme issue about that).

It is not recommended to use setState in componentDidUpdate() but it is possible. The only potential problem is infinite loops but we have enough guards in place to avoid that, so I don't think we'll run into issues. That being said, once this patch lands and we upgrade to Enzyme 3.9.0, I'll try to rewrite the logic with getDerivedStateFromProps() (cf. mozilla/addons#2071).

[codecov-io]

Codecov Report

Merging #7874 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master    mozilla/addons-frontend#7874   +/-   ##
=======================================
  Coverage   98.04%   98.04%           
=======================================
  Files         259      259           
  Lines        7151     7151           
  Branches     1322     1322           
=======================================
  Hits         7011     7011           
  Misses        126      126           
  Partials       14       14

Impacted Files	Coverage Δ
src/amo/pages/UserProfileEdit/index.js	100% <100%> (ø)	⬆️

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[kumar303]

Sounds like a good idea