Remove old HiFiGAN code

[roedoejet]

PR Goal?

Removes stale hifigan code

Fixes?

#415

Feedback sought?

Sanity check

Priority?

medium

Tests added?

Just removed a test

How to test?

Just scan for errors

Confidence?

High. I've tested this works with the CLI

Version change?

N/A (pre-alpha)

Related PRs

EveryVoiceTTS/FastSpeech2_lightning#74

[github-actions]

CLI load time: 0:00.29
Pull Request HEAD: 5cde4145a896d4a9973ad6dd9deb41428ac230fd
Imports that take more than 0.1 s:
import time: self [us] | cumulative | imported package

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.02%. Comparing base (110512c) to head (5cde414).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #426      +/-   ##
==========================================
+ Coverage   73.49%   76.02%   +2.53%     
==========================================
  Files          43       42       -1     
  Lines        2852     2757      -95     
  Branches      468      455      -13     
==========================================
  Hits         2096     2096              
+ Misses        671      576      -95     
  Partials       85       85              

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[joanise]

Looks good.