Remove unused feature flags in sedona-geo-generic-alg

Author: Kontinuation

rust/sedona-geo-generic-alg/Cargo.toml

@@ -27,11 +27,6 @@ edition = "2021"
 
 [workspace]
 
-[features]
-default = ["multithreading"]
-use-serde = ["serde", "geo-types/serde"]
-multithreading = ["i_overlay/allow_multithreading", "geo-types/multithreading"]
-
 [dependencies]
 float_next_after = "1"
 geo-traits = { version = "0.3.0" }

rust/sedona-geo-generic-alg/src/lib.rs

@@ -23,10 +23,6 @@
 //! The original upstream project is dual-licensed under Apache-2.0 or MIT; the copied/ported code
 //! here is used under the Apache-2.0 license consistent with this repository.
 //! This top-level file orchestrates module exposure and numeric traits mirroring upstream design.
-#[cfg(feature = "use-serde")]
-#[macro_use]
-extern crate serde;
-
 pub use crate::algorithm::*;
 use std::cmp::Ordering;