chore: remove providers deployment support

[AlexD10S]

Removed the integration with PDP to deploy a chain introduced in #459

Next steps is to remove it from the docs: https://learn.onpop.io/chains/guides/launch-a-chain/deploy-a-chain-polkadot-deployment-portal

[codecov]

Codecov Report

❌ Patch coverage is 57.14286% with 18 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.39%. Comparing base (5f0673c) to head (11933ad).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/pop-cli/src/commands/up/chain.rs	53.84%	13 Missing and 5 partials ⚠️

@@            Coverage Diff             @@
##             main    #1004      +/-   ##
==========================================
+ Coverage   56.82%   58.39%   +1.57%     
==========================================
  Files         177      176       -1     
  Lines       43679    42783     -896     
  Branches    43679    42783     -896     
==========================================
+ Hits        24819    24985     +166     
+ Misses      16591    15447    -1144     
- Partials     2269     2351      +82     

Files with missing lines	Coverage Δ
crates/pop-chains/src/lib.rs	0.00% <ø> (ø)
crates/pop-chains/src/supported_chains.rs	63.88% <ø> (ø)
crates/pop-chains/src/templates.rs	99.52% <ø> (+16.97%)	⬆️
crates/pop-cli/src/commands/build/spec.rs	55.18% <ø> (-0.20%)	⬇️
crates/pop-cli/src/commands/up/mod.rs	65.06% <100.00%> (-2.03%)	⬇️
crates/pop-cli/src/main.rs	76.23% <ø> (ø)
crates/pop-cli/src/style.rs	92.30% <ø> (-2.70%)	⬇️
crates/pop-cli/src/commands/up/chain.rs	56.91% <53.84%> (-11.60%)	⬇️

... and 47 files with indirect coverage changes

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[AlexD10S]

@codex

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Nice work!

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