No need for manual coarsetime::Instant::update() anymore

lib/proxy/mod.rs

@@ -98,9 +98,6 @@ impl Proxy<'_> {
         loop {
             let (vm_readable, host_readable, interrupt) = self.poller.wait()?;
 
-            // Update coarse time for the DHCP snooper
-            coarsetime::Instant::update();
-
             if vm_readable {
                 self.read_from_vm(buf.as_mut_slice())?;
             }