Refactor: use strip_0x in Cast::publish and drop unnecessary mut (#12376)

* Update lib.rs

* Update lib.rs

Author: viktorking7

crates/cast/src/lib.rs

@@ -323,15 +323,8 @@ impl<P: Provider<AnyNetwork>> Cast<P> {
     /// # Ok(())
     /// # }
     /// ```
-    pub async fn publish(
-        &self,
-        mut raw_tx: String,
-    ) -> Result<PendingTransactionBuilder<AnyNetwork>> {
-        raw_tx = match raw_tx.strip_prefix("0x") {
-            Some(s) => s.to_string(),
-            None => raw_tx,
-        };
-        let tx = hex::decode(raw_tx)?;
+    pub async fn publish(&self, raw_tx: String) -> Result<PendingTransactionBuilder<AnyNetwork>> {
+        let tx = hex::decode(strip_0x(&raw_tx))?;
         let res = self.provider.send_raw_transaction(&tx).await?;
 
         Ok(res)