Remove 0x prefix in hexToBytes.

Author: paulmillr

Diff for: src/utils.ts

@@ -1,13 +1,13 @@
 // buf.toString('hex') -> toHex(buf)
 import assert from "@noble/hashes/_assert";
+import { hexToBytes as _hexToBytes } from "@noble/hashes/utils";
 const assertBool = assert.bool;
 const assertBytes = assert.bytes;
 export { assertBool, assertBytes };
 export {
   bytesToHex,
   bytesToHex as toHex,
   concatBytes,
-  hexToBytes,
   createView,
   utf8ToBytes
 } from "@noble/hashes/utils";
@@ -20,6 +20,11 @@ export function bytesToUtf8(data: Uint8Array): string {
   return new TextDecoder().decode(data);
 }
 
+export function hexToBytes(data: string): Uint8Array {
+  const sliced = data.startsWith("0x") ? data.substring(2) : data;
+  return _hexToBytes(sliced);
+}
+
 // buf.equals(buf2) -> equalsBytes(buf, buf2)
 export function equalsBytes(a: Uint8Array, b: Uint8Array): boolean {
   if (a.length !== b.length) {