Remove elittorrent (dead) and defunct provider icons

[duramato]

• PR is based on the DEVELOP branch
• Don't send big changes all at once. Split up big PRs into multiple smaller PRs that are easier to manage and review
• Read the contribution guide

[codecov-io]

Codecov Report

Merging #4038 into develop will decrease coverage by 0.11%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop    #4038      +/-   ##
===========================================
- Coverage    29.37%   29.25%   -0.12%     
===========================================
  Files          277      276       -1     
  Lines        35503    35419      -84     
===========================================
- Hits         10430    10363      -67     
+ Misses       25073    25056      -17

Impacted Files	Coverage Δ
medusa/providers/__init__.py	53.84% <ø> (ø)	⬆️
medusa/providers/torrent/__init__.py	100% <ø> (ø)	⬆️

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[medariox]

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