Removed deprecated code.

[benkonrath]

This is in preparation for the 2.0 release.

[codecov-io]

Codecov Report

Merging #321 into master will decrease coverage by 0.37%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #321      +/-   ##
==========================================
- Coverage   96.24%   95.87%   -0.38%     
==========================================
  Files         154      153       -1     
  Lines        4372     3804     -568     
  Branches      591      507      -84     
==========================================
- Hits         4208     3647     -561     
+ Misses        103       96       -7     
  Partials       61       61

Impacted Files	Coverage Δ
localflavor/hr/hr_choices.py	100% <ø> (ø)	⬆️
localflavor/ro/forms.py	92.5% <ø> (-1.95%)	⬇️
localflavor/dk/forms.py	100% <ø> (ø)	⬆️
localflavor/au/forms.py	86.04% <ø> (-3.79%)	⬇️
localflavor/us/models.py	100% <ø> (+5.55%)	⬆️
localflavor/lt/forms.py	100% <ø> (ø)	⬆️
localflavor/nz/forms.py	100% <ø> (ø)	⬆️
localflavor/il/forms.py	100% <ø> (ø)	⬆️
localflavor/br/forms.py	98.26% <ø> (+1.29%)	⬆️
localflavor/pt/forms.py	100% <ø> (ø)	⬆️
... and 25 more

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