clippy: use &&, not &, on bools

These two expressions were quite confusingly constructed.

Author: apoelstra

src/transaction.rs

@@ -238,13 +238,13 @@ impl Sequence {
     /// Returns `true` if the sequence number encodes a block based relative lock-time.
     #[inline]
     pub fn is_height_locked(&self) -> bool {
-        self.is_relative_lock_time() & (self.0 & Sequence::LOCK_TYPE_MASK == 0)
+        self.is_relative_lock_time() && self.0 & Sequence::LOCK_TYPE_MASK == 0
     }
 
     /// Returns `true` if the sequence number encodes a time interval based relative lock-time.
     #[inline]
     pub fn is_time_locked(&self) -> bool {
-        self.is_relative_lock_time() & (self.0 & Sequence::LOCK_TYPE_MASK > 0)
+        self.is_relative_lock_time() && self.0 & Sequence::LOCK_TYPE_MASK > 0
     }
 
     /// Create a relative lock-time using block height.