Replace ClonableService with local copy

actix-http/src/client/connector.rs

@@ -47,6 +47,7 @@ pub struct Connector<T, U> {
 }
 
 impl Connector<(), ()> {
+    #[allow(clippy::new_ret_no_self)]
     pub fn new() -> Connector<
         impl Service<
                 Request = TcpConnect<Uri>,

actix-http/src/client/pool.rs

@@ -427,7 +427,9 @@ where
 
     fn check_availibility(&self) {
         if !self.waiters_queue.is_empty() && self.acquired < self.limit {
-            self.task.as_ref().map(|t| t.notify());
+            if let Some(t) = self.task.as_ref() {
+                t.notify()
+            }
         }
     }
 }