Remove solana crcw config as ContractTransimitter

[huangzhen1997]

Jira

Chain reader and chain writer config is no longer needed, as Solana uses CCIP provider to create contractTransmitter

[github-actions]

I see you updated files related to core. Please run make gocs in the root directory to add a changeset as well as in the text include at least one of the following tags:

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[github-actions]

✅ No conflicts with other open PRs targeting develop

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[Copilot]

Pull request overview

Risk Rating: MEDIUM

This PR removes Solana-specific chain reader/writer (CRCW) configuration plumbing in favor of using the Solana CCIPProvider to supply the required chain accessor and contract transmitter.

Changes:

• Deleted Solana contract reader config generator and its associated JSON round-trip test.
• Deleted Solana ChainRWProvider (CRCW) implementation used to create loop contract readers/writers from generated configs.
• Updated Solana plugin config to no longer register a ChainRW provider (leaving it nil) while keeping CCIPProviderSupported: true.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
core/capabilities/ccip/configs/solana/contract_reader.go	Removed Solana ContractReader config generation (IDL/config-based reader setup).
core/capabilities/ccip/configs/solana/contract_reader_test.go	Removed test covering JSON marshal/unmarshal stability for the removed reader config.
core/capabilities/ccip/ccipsolana/crcwconfig.go	Removed Solana CRCW provider that built ContractReader/ContractWriter via relayer config blobs.
core/capabilities/ccip/ccipsolana/pluginconfig.go	Stops providing ChainRW for Solana plugin config while indicating CCIPProvider support.

Areas requiring scrupulous human review:

• Validate that the Solana relayer’s NewCCIPProvider implementation reliably provides a non-nil ChainAccessor() and (critically) a non-nil ContractTransmitter() for Solana, since the in-process CRCW fallback path is removed here.
• Confirm that any Solana runtime paths still requiring Loop ContractReader/ContractWriter (e.g., fee estimation or any non-provider read/write paths) are fully covered by the CCIPProvider path after this change.

[cl-sonarqube-production]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

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