client_performance.rs, configuration_benchmarks.rs and
serialization_benchmarks.rs were wholly commented-out /* ... */
bodies with a `fn main()` placeholder and a TODO explaining that
either the types or the crate deps they referenced never existed.
They never produced measurements and benchmarks do not ship, so
delete them and drop their `[[bench]]` entries from Cargo.toml.
The remaining `encryption_performance` bench (auth token storage)
is kept as-is.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
d01105f87c