- some clippy fixes

src/register.rs

@@ -10,18 +10,15 @@ use std::marker::PhantomData;
 
 /// Optimizer type for registration
 #[derive(Clone, Debug, PartialEq)]
+#[derive(Default)]
 pub enum Optimizer {
     /// L-BFGS optimizer (fast, requires consistent gradients)
+    #[default]
     LBFGS,
     /// Adaptive Stochastic Gradient Descent (robust, handles noisy gradients)
     ASGD,
 }
 
-impl Default for Optimizer {
-    fn default() -> Self {
-        Self::LBFGS
-    }
-}
 
 #[derive(Clone, Debug)]
 pub struct RegistrationStep {
@@ -358,11 +355,10 @@ impl<D: Dimension> Registration<D> {
                 &scales,
             );
 
-            if let Some(result) = optimization_result {
-                if result.optimal_point.iter().all(|i| i.is_finite()) {
+            if let Some(result) = optimization_result
+                && result.optimal_point.iter().all(|i| i.is_finite()) {
                     p = self.fixed_mu.combine(&result.optimal_point);
                 }
-            }
         }
         Ok(Transform::<D>::new(p, fixed.shape().to_vec()))
     }