Remove useless conversion

Clippy emits:

  warning: useless conversion to the same type:
  `setup::miniscript::bitcoin::absolute::LockTime`

As suggested, remove useless conversion.

Author: tcharding

bitcoind-tests/tests/test_cpp.rs

@@ -105,9 +105,7 @@ pub fn test_from_cpp_ms(cl: &Client, testdata: &TestData) {
         let mut psbt = Psbt {
             unsigned_tx: Transaction {
                 version: transaction::Version::TWO,
-                lock_time: absolute::LockTime::from_time(1_603_866_330)
-                    .expect("valid timestamp")
-                    .into(), // 10/28/2020 @ 6:25am (UTC)
+                lock_time: absolute::LockTime::from_time(1_603_866_330).expect("valid timestamp"), // 10/28/2020 @ 6:25am (UTC)
                 input: vec![],
                 output: vec![],
             },

bitcoind-tests/tests/test_desc.rs

@@ -104,9 +104,7 @@ pub fn test_desc_satisfy(
     let mut psbt = Psbt {
         unsigned_tx: Transaction {
             version: transaction::Version::TWO,
-            lock_time: absolute::LockTime::from_time(1_603_866_330)
-                .expect("valid timestamp")
-                .into(), // 10/28/2020 @ 6:25am (UTC)
+            lock_time: absolute::LockTime::from_time(1_603_866_330).expect("valid timestamp"), // 10/28/2020 @ 6:25am (UTC)
             input: vec![],
             output: vec![],
         },