chore: appease clippy (#4471)

winit-x11/src/ime/inner.rs

@@ -50,8 +50,13 @@ impl ImeInner {
     }
 
     pub unsafe fn close_im_if_necessary(&self) -> Result<bool, XError> {
-        if !self.is_destroyed && self.im.is_some() {
-            unsafe { close_im(&self.xconn, self.im.as_ref().unwrap().im) }.map(|_| true)
+        if !self.is_destroyed {
+            if let Some(im) = &self.im {
+                unsafe { close_im(&self.xconn, im.im) }?;
+                Ok(true)
+            } else {
+                Ok(false)
+            }
         } else {
             Ok(false)
         }