FIP-0103: Removal of the ExtendSectorExpiration method from the miner actor

[sudo-shashank]

Removed deprecated ExtendSectorExpiration as a new method already exist ExtendSectorExpiration2

• Remove ExtendSectorExpiration and ExtensionKind from the miner actor.
• Ensure that tests for ExtendSectorExpiration2 effectively cover the same functionality.
• Ensure that removal of tests previously covering ExtendSectorExpiration doesn't result in an overall reduction in test coverage.
• Ensure all systems behave normally with the removal of ExtendSectorExpiration.

FIP-0103: https://github.com/filecoin-project/FIPs/blob/master/FIPS/fip-0103.md

[Copilot]

Pull Request Overview

This PR removes the deprecated ExtendSectorExpiration method and all associated legacy handling, consolidating on the new ExtendSectorExpiration2 API.

• Eliminate all vestiges of the old ExtendSectorExpiration method in actor code and tests
• Update tests and utilities to only invoke ExtendSectorExpiration2 and drop version flags
• Ensure test coverage remains equivalent by renaming and refactoring legacy test cases

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
test_vm/tests/suite/extend_sectors_test.rs	Renamed and simplified the legacy extension test to use only v2
integration_tests/src/tests/replica_update_test.rs	Updated method enum use to call the new v2 method ID
integration_tests/src/tests/extend_sectors_test.rs	Removed v1 branches and tests; all calls now target v2
actors/miner/tests/util.rs	Dropped legacy helper and parameter types; versioned helper now only v2
actors/miner/tests/extend_sector_expiration_test.rs	Stripped out all v1 test cases and updated remaining tests to v2
actors/miner/src/lib.rs	Commented out deprecated enum variant and removed legacy handler code

Comments suppressed due to low confidence (4)

test_vm/tests/suite/extend_sectors_test.rs:9

• [nitpick] The test name extend_sector_with_deals no longer distinguishes which extension version it covers. Consider renaming it to extend_sector_with_deals_extend2 to make it clear that only the v2 API is exercised.

fn extend_sector_with_deals() {

actors/miner/tests/util.rs:2669

• [nitpick] This helper no longer handles multiple versions and always calls the v2 path. Consider renaming it (for example to extend_sectors2_no_claims) to reflect that it invokes only the new API.

    pub fn extend_sectors_versioned(

actors/miner/src/lib.rs:115

• [nitpick] The deprecated method enum variant is commented out but not marked as deprecated in the public API docs. Consider annotating it with #[deprecated] or adding a clear comment in the Method enum documentation to guide integrators.

    //ExtendSectorExpiration = 8, // Deprecated

actors/miner/tests/extend_sector_expiration_test.rs:76

• [nitpick] The construction of ExtendSectorExpiration2Params with a single-element vector is repeated across many tests. Consider extracting a small helper or builder function to reduce duplication and improve readability.

    let params = ExtendSectorExpiration2Params {

[ZenGround0]

LGTM

[sudo-shashank]

@ZenGround0 can i merge this PR?

[ZenGround0]

Yes, added it to the queue for you