refactor(queue): remove do from do_pop_unchecked

Rename `do_pop_unchecked` to just `pop_unchecked`.
Save couple bytes on the disk.

Signed-off-by: Egor Lazarchuk <[email protected]>

Author: ShadowCurse

src/vmm/src/devices/virtio/queue.rs

@@ -522,7 +522,7 @@ impl Queue {
             return None;
         }
 
-        self.do_pop_unchecked()
+        self.pop_unchecked()
     }
 
     /// Try to pop the first available descriptor chain from the avail ring.
@@ -536,15 +536,15 @@ impl Queue {
             return None;
         }
 
-        self.do_pop_unchecked()
+        self.pop_unchecked()
     }
 
     /// Pop the first available descriptor chain from the avail ring.
     ///
     /// # Important
     /// This is an internal method that ASSUMES THAT THERE ARE AVAILABLE DESCRIPTORS. Otherwise it
     /// will retrieve a descriptor that contains garbage data (obsolete/empty).
-    fn do_pop_unchecked(&mut self) -> Option<DescriptorChain> {
+    fn pop_unchecked(&mut self) -> Option<DescriptorChain> {
         // This fence ensures all subsequent reads see the updated driver writes.
         fence(Ordering::Acquire);