remove thiserror dependency

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "baa"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 authors = ["Kevin Laeufer <laeufer@berkeley.edu>"]
 description = "BitVector and Array Arithmetic"
@@ -13,12 +13,14 @@ readme = "Readme.md"
 rust-version = "1.73.0"
 
 [dependencies]
+# core dependency, used for owned bitvector type
+smallvec = { version = "1.13.2", features = ["const_new", "union"] }
+# optional dependencies for crate interop
 bitvec = { version = "1.0", optional = true, features = ["std", "alloc"] }
 fraction = { version = "0.11", optional = true }
 num-bigint = { version = "0.4", optional = true}
-smallvec = { version = "1.13.2", features = ["const_new", "union"] }
 serde = { version = "1.0", features = ["derive"], optional = true }
-thiserror = "1.0.60"
+
 
 [dev-dependencies]
 proptest = "1.4.0"

src/lib.rs

@@ -12,10 +12,6 @@ pub type WidthInt = u32;
 /// Word size for values.
 pub type Word = u64;
 
-use thiserror::Error;
-#[derive(Debug, Error)]
-pub enum Error {}
-
 pub use arithmetic::mask;
 pub use ops::{ArrayMutOps, ArrayOps, BitVecMutOps, BitVecOps, DENSE_ARRAY_MAX_INDEX_WIDTH};
 pub use value::borrowed::{ArrayValueMutRef, ArrayValueRef, BitVecValueMutRef, BitVecValueRef};