Remove throwing error on unrecognized binding

[boopathi]

• Fix babili issue with pino #547
• Fix Binding not found for BindingIdentifier #549

[codecov]

Codecov Report

Merging #550 into master will increase coverage by 0.07%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #550      +/-   ##
==========================================
+ Coverage   82.86%   82.93%   +0.07%     
==========================================
  Files          40       40              
  Lines        2725     2719       -6     
  Branches      956      952       -4     
==========================================
- Hits         2258     2255       -3     
+ Misses        282      280       -2     
+ Partials      185      184       -1

Impacted Files	Coverage Δ
...ages/babel-plugin-minify-mangle-names/src/index.js	82.48% <100%> (+0.51%)	⬆️
packages/babel-plugin-minify-simplify/src/index.js	80.74% <0%> (+0.12%)	⬆️

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[tomkel]

Thank you! 🎉