Remove the lifetime module from diskann-utils.

[hildebrandmw]

This utility is no longer needed.

[Copilot]

Pull request overview

This PR removes the diskann-utils “lifetime” utility module and its public WithLifetime API, simplifying the crate surface area by eliminating a no-longer-used abstraction.

Changes:

• Delete diskann-utils/src/lifetime.rs (trait + helper types + unit tests).
• Remove pub mod lifetime and pub use lifetime::WithLifetime from diskann-utils’ public exports.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
diskann-utils/src/lifetime.rs	Deletes the lifetime-annotation utilities (WithLifetime, Static, Slice) and their tests.
diskann-utils/src/lib.rs	Removes the lifetime module declaration and WithLifetime re-export from the crate root API.

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.47%. Comparing base (6caca35) to head (5a4853f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1275      +/-   ##
==========================================
- Coverage   91.50%   90.47%   -1.03%     
==========================================
  Files         498      497       -1     
  Lines       95522    95489      -33     
==========================================
- Hits        87407    86397    -1010     
- Misses       8115     9092     +977     

Flag	Coverage Δ
miri	90.47% <ø> (-1.03%)	⬇️
unittests	90.14% <ø> (-1.33%)	⬇️

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Files with missing lines	Coverage Δ
diskann-utils/src/lib.rs	100.00% <ø> (ø)

... and 40 files with indirect coverage changes

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