chore: small cleanup in pairings

[ivokub]

Description

Unify method receivers and remove unused functions

Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I did not modify files generated from templates
• golangci-lint does not output errors locally
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

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Note

Convert Pairing-related methods to pointer receivers across emulated/native pairings and remove unused G1 curve precompute code in native BLS curves.

• Emulated pairings (sw_bls12381, sw_bn254, sw_bw6761):
  • Switch many Pairing methods to pointer receivers: Pair, PairingCheck, MillerLoop, millerLoopLines, FinalExponentiation, AssertFinalExponentiationIsOne, MillerLoopAndMul, AssertMillerLoopAndFinalExpIsOne, IsMillerLoopAndFinalExpOne, equality/assert helpers, mux helpers, on-curve/subgroup checks, and internal step helpers.
• Native pairings:
  • sw_bls12377/pairing2.go, sw_bls24315/pairing2.go: change MuxG2 and MuxGt to pointer receivers.
  • sw_bls12377 and sw_bls24315 inner modules: remove unused G1 curve precompute code (computedCurveTable, computeCurveTable, curvePoints/getCurvePoints); keep twist tables.

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[Copilot]

Pull Request Overview

This PR standardizes method receivers across pairing types by converting value receivers to pointer receivers and removes unused curve-related functions and variables. The changes improve consistency in the API while cleaning up dead code.

• Unified all pairing method receivers to use pointer receivers (*Pairing) instead of value receivers (Pairing)
• Removed unused computeCurveTable() functions and related curvePoints structs from BLS curve implementations
• Cleaned up global variables and initialization code that was no longer needed

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
std/algebra/native/sw_bls24315/pairing2.go	Changed MuxG2 and MuxGt methods to use pointer receivers
std/algebra/native/sw_bls24315/inner_compute.go	Removed unused computeCurveTable function
std/algebra/native/sw_bls24315/inner.go	Removed unused curvePoints struct and related code
std/algebra/native/sw_bls12377/pairing2.go	Changed MuxG2 and MuxGt methods to use pointer receivers
std/algebra/native/sw_bls12377/inner_compute.go	Removed unused computeCurveTable function
std/algebra/native/sw_bls12377/inner.go	Removed unused curvePoints struct and related code
std/algebra/emulated/sw_bw6761/pairing.go	Changed all pairing methods to use pointer receivers
std/algebra/emulated/sw_bn254/pairing.go	Changed all pairing methods to use pointer receivers
std/algebra/emulated/sw_bls12381/pairing.go	Changed all pairing methods to use pointer receivers

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