Remove handling of babelrc in jest-editor-support

[danez]

Summary

.babelrc is the config file of babel and not babylon. Loading plugins from .babelrc and supplying them to babylon does nothing. babylon will not fail but silently ignore invalid plugins.

In future we want to have a way to use .babelrc (or similar) for babylon, but we are not there yet.

I noticed this while searching for why vscode-jest does not work with jsx syntax, but this is due to #3076 not being released yet.

//cc @orta

[codecov-io]

Codecov Report

Merging #3344 into master will decrease coverage by 0.11%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3344      +/-   ##
==========================================
- Coverage   65.04%   64.93%   -0.12%     
==========================================
  Files         176      176              
  Lines        6535     6514      -21     
  Branches        4        4              
==========================================
- Hits         4251     4230      -21     
  Misses       2283     2283              
  Partials        1        1

Impacted Files	Coverage Δ
...s/jest-editor-support/src/parsers/BabylonParser.js	98.64% <100%> (-0.3%)	⬇️

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[cpojer]

This is great, I was hoping for this change for a while but nobody got around to it. Thank you very much.

[orta]

Ah - thanks! Will ship an update to vscode-jest once there's another Jest release - should fix a bunch of stuff 👍

[github-actions]

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