Remove dead code from diskann-tools (#829) `diskann-tools` exposed public API that was neither consumed by its own binaries nor by any external crate (`diskann-benchmark`). This removes all such dead public items. ## Removed items - **`data_type.rs`**: `AssociatedDataType` enum — never referenced - **`graph_data_types.rs`**: `GraphDataMinMaxVector`, `GraphDataF32VectorU32Assoc`, `GraphDataFloatVectorU32Data` — no binary or crate instantiates these - **`ground_truth.rs`**: `compute_range_search_ground_truth_from_datafiles` + `compute_range_search_ground_truth_from_data` — range search module is disabled; no callers - **`search_index_utils.rs`**: `TruthSetWithAssociatedData`, `load_truthset_with_associated_data`, `calculate_range_search_recall`, `get_graph_num_frozen_points`, `get_graph_max_observed_degree` — none called by binaries or `diskann-benchmark` (which has its own graph-reading helpers) - **`filter_search_utils.rs`** (entire file deleted): `read_labels_to_bitmap`, `process_bitmap_for_labels`, `SerializableBitSet` caching helper, and their tests — `diskann-benchmark` uses `read_labels_and_compute_bitmap` from `ground_truth.rs` instead ## Made private - **`random_data_generator.rs`**: `write_random_data_writer` — internal helper only called by `write_random_data` in the same file

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> > ---- > > *This section details on the original issue you should resolve* > > Remove dead code from diskann-tools > The pub code not used by other crates or not used by `diskann-tools/src/bin/*.rs` should be removed. > > ## Comments on the Issue (you are @copilot in this section) > > > >

- Fixes microsoft/DiskANN#768 --- 💬 Send tasks to Copilot coding agent from [Slack](https://gh.io/cca-slack-docs) and [Teams](https://gh.io/cca-teams-docs) to turn conversations into code. Copilot posts an update in your thread when it's finished. --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: harsha-simhadri <5590673+harsha-simhadri@users.noreply.github.com> Co-authored-by: Harsha Vardhan Simhadri Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

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Remove dead code from diskann-tools #768

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