Remove useless use of format

Clippy emits:

 warning: Useless use of format

Use string directly.

Author: tcharding

src/descriptor/mod.rs

@@ -1030,9 +1030,9 @@ mod tests {
 
     #[test]
     pub fn script_pubkey() {
-        let bare = StdDescriptor::from_str(&format!(
-            "multi(1,020000000000000000000000000000000000000000000000000000000000000002)"
-        ))
+        let bare = StdDescriptor::from_str(
+            "multi(1,020000000000000000000000000000000000000000000000000000000000000002)",
+        )
         .unwrap();
         assert_eq!(
             bare.script_pubkey(),

src/miniscript/mod.rs

@@ -1003,28 +1003,28 @@ mod tests {
     #[test]
     fn test_tapscript_rtt() {
         // Test x-only invalid under segwitc0 context
-        let ms = Segwitv0Script::from_str_insane(&format!(
-            "pk(2788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)"
-        ));
+        let ms = Segwitv0Script::from_str_insane(
+            "pk(2788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)",
+        );
         assert_eq!(
             ms.unwrap_err().to_string(),
             "unexpected «key hex decoding error»",
         );
-        Tapscript::from_str_insane(&format!(
-            "pk(2788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)"
-        ))
+        Tapscript::from_str_insane(
+            "pk(2788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)",
+        )
         .unwrap();
 
         // Now test that bitcoin::PublicKey works with Taproot context
-        Miniscript::<bitcoin::PublicKey, Tap>::from_str_insane(&format!(
-            "pk(022788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)"
-        ))
+        Miniscript::<bitcoin::PublicKey, Tap>::from_str_insane(
+            "pk(022788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)",
+        )
         .unwrap();
 
         // uncompressed keys should not be allowed
-        Miniscript::<bitcoin::PublicKey, Tap>::from_str_insane(&format!(
+        Miniscript::<bitcoin::PublicKey, Tap>::from_str_insane(
             "pk(04eed24a081bf1b1e49e3300df4bebe04208ac7e516b6f3ea8eb6e094584267c13483f89dcf194132e12238cc5a34b6b286fc7990d68ed1db86b69ebd826c63b29)"
-        ))
+        )
         .unwrap_err();
 
         //---------------- test script <-> miniscript ---------------
@@ -1050,14 +1050,14 @@ mod tests {
         .unwrap();
 
         // multi not allowed in tapscript
-        Tapscript::from_str_insane(&format!(
-            "multi(1,2788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)"
-        ))
+        Tapscript::from_str_insane(
+            "multi(1,2788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)",
+        )
         .unwrap_err();
         // but allowed in segwit
-        Segwitv0Script::from_str_insane(&format!(
-            "multi(1,022788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)"
-        ))
+        Segwitv0Script::from_str_insane(
+            "multi(1,022788ee41e76f4f3af603da5bc8fa22997bc0344bb0f95666ba6aaff0242baa99)",
+        )
         .unwrap();
     }
 

src/psbt/mod.rs

@@ -1667,7 +1667,7 @@ mod tests {
 
     #[test]
     fn test_update_input_checks() {
-        let desc = format!("tr([73c5da0a/86'/0'/0']xpub6BgBgsespWvERF3LHQu6CnqdvfEvtMcQjYrcRzx53QJjSxarj2afYWcLteoGVky7D3UKDP9QyrLprQ3VCECoY49yfdDEHGCtMMj92pReUsQ/0/0)");
+        let desc = "tr([73c5da0a/86'/0'/0']xpub6BgBgsespWvERF3LHQu6CnqdvfEvtMcQjYrcRzx53QJjSxarj2afYWcLteoGVky7D3UKDP9QyrLprQ3VCECoY49yfdDEHGCtMMj92pReUsQ/0/0)";
         let desc = Descriptor::<DefiniteDescriptorKey>::from_str(&desc).unwrap();
 
         let mut non_witness_utxo = bitcoin::Transaction {
@@ -1732,7 +1732,7 @@ mod tests {
 
     #[test]
     fn test_update_output_checks() {
-        let desc = format!("tr([73c5da0a/86'/0'/0']xpub6BgBgsespWvERF3LHQu6CnqdvfEvtMcQjYrcRzx53QJjSxarj2afYWcLteoGVky7D3UKDP9QyrLprQ3VCECoY49yfdDEHGCtMMj92pReUsQ/0/0)");
+        let desc = "tr([73c5da0a/86'/0'/0']xpub6BgBgsespWvERF3LHQu6CnqdvfEvtMcQjYrcRzx53QJjSxarj2afYWcLteoGVky7D3UKDP9QyrLprQ3VCECoY49yfdDEHGCtMMj92pReUsQ/0/0)";
         let desc = Descriptor::<DefiniteDescriptorKey>::from_str(&desc).unwrap();
 
         let tx = bitcoin::Transaction {