Address Clippy lints

winit/src/application.rs

@@ -647,7 +647,7 @@ mod platform {
     {
         use winit::platform::run_return::EventLoopExtRunReturn;
 
-        let _ = event_loop.run_return(event_handler);
+        event_loop.run_return(event_handler);
 
         Ok(())
     }

winit/src/conversion.rs

@@ -485,10 +485,10 @@ pub fn key_code(
 
 // As defined in: http://www.unicode.org/faq/private_use.html
 pub(crate) fn is_private_use_character(c: char) -> bool {
-    match c {
+    matches!(
+        c,
         '\u{E000}'..='\u{F8FF}'
         | '\u{F0000}'..='\u{FFFFD}'
-        | '\u{100000}'..='\u{10FFFD}' => true,
-        _ => false,
-    }
+        | '\u{100000}'..='\u{10FFFD}'
+    )
 }

winit/src/system.rs

@@ -24,7 +24,7 @@ pub(crate) fn information(
 
     let memory_used = sysinfo::get_current_pid()
         .and_then(|pid| system.process(pid).ok_or("Process not found"))
-        .and_then(|process| Ok(process.memory()))
+        .map(|process| process.memory())
         .ok();
 
     Information {