Remove Unused ts files

[luiz-lvj]

This PR removes some outdated ts files from the current release. They might be integrated later in an sdk, but are not used for v1 of the release.

Summary by CodeRabbit

• Refactor
  • Removed prover helper abstractions and implementations previously used to enable cross-chain block hash and storage proof verification functionality. Deleted components include base abstractions for cryptographic proof handling, implementations supporting parent-to-child chain interactions, implementations supporting child-to-parent chain interactions, and specialized utilities for chain-specific proof verification and comprehensive multi-chain state validation workflows.

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[coderabbitai]

📝 Walkthrough

Walkthrough

This PR removes the entire TypeScript prover helper abstraction layer, including the base class BaseProverHelper, the IProverHelper interface, two concrete implementations (ChildToParentProverHelper and ParentToChildProverHelper), and the Optimism-specific variant (OptimismChildToParentProverHelper), along with their exports from the index file.

Changes

Cohort / File(s)	Summary
Base abstractions src/ts/BaseProverHelper.ts, src/ts/IProverHelper.ts	Removed abstract base class that provided cross-chain prover interaction logic, RLP encoding utilities, and block/proof fetching methods; deleted interface defining the async prover input builder contract.
Core implementations src/ts/ChildToParentProverHelper.ts, src/ts/ParentToChildProverHelper.ts	Removed two concrete prover helper classes that extended BaseProverHelper, implemented IProverHelper, and handled child-to-parent and parent-to-child block verification and storage proofs.
Optimism variant src/ts/optimism/ChildToParentProverHelper.ts	Removed Optimism-specific prover helper implementation that used L1Block predeploy to fetch block hashes and construct verification proofs.
Module exports src/ts/index.ts	Removed barrel exports for ChildToParentProverHelper, ParentToChildProverHelper, IProverHelper, and OptimismChildToParentProverHelper.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• Add script to generate storage proofs #32: Modifies/removes prover helper functionality and shares RLP block conversion and storage/account proof helpers logic
• Update Contracts due to ERC change #61: Updates prover helper files and IProverHelper interface, transitioning to StateProver terminology while this PR removes those same entities
• Add Optimism Prover #29: Introduces Optimism ChildToParentProverHelper and related prover code affecting the same files this PR removes

Suggested reviewers

• pepebndc
• nahimterrazas

Poem

🐰 The prover helpers hop away,
No more base classes here to stay,
RLP encodings fade from sight,
Cross-chain logic takes its flight,
Simpler paths emerge today!

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the main objective of this PR, which is the removal of TypeScript files that are no longer used in the current release.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

• 📝 Generate docstrings

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