Change generic definition of Catcher functions (#873)

crates/core/src/catcher.rs

@@ -69,9 +69,9 @@ impl Default for Catcher {
 }
 impl Catcher {
     /// Create new `Catcher`.
-    pub fn new<H: Into<Arc<dyn Handler>>>(goal: H) -> Self {
+    pub fn new<H: Handler>(goal: H) -> Self {
         Catcher {
-            goal: goal.into(),
+            goal: Arc::new(goal),
             hoops: vec![],
         }
     }
@@ -114,15 +114,6 @@ impl Catcher {
     }
 }
 
-impl<H> From<H> for Catcher
-where
-    H: Into<Arc<dyn Handler>>,
-{
-    fn from(goal: H) -> Self {
-        Catcher::new(goal)
-    }
-}
-
 /// Default [`Handler`] used as goal for [`Catcher`].
 ///
 /// If http status is error, and all custom handlers is not catch it and write body,