Drop the counter padding that was never buying a cache line

loss.go

@@ -18,7 +18,6 @@ type lossWindow struct {
 	bits   []uint64
 	lost   atomic.Uint64
 	late   atomic.Uint64
-	_      [16]byte
 }
 
 func newLossWindows(n int) []lossWindow {

rx.go

@@ -15,7 +15,6 @@ type rxStats struct {
 	badLen   atomic.Uint64
 	crcErr   atomic.Uint64
 	rxErrs   atomic.Uint64
-	_        [16]byte
 }
 
 type rxWorker struct {

tx.go

@@ -10,7 +10,6 @@ type txStats struct {
 	frames atomic.Uint64
 	bytes  atomic.Uint64
 	errs   atomic.Uint64
-	_      [40]byte
 }
 
 type txWorker struct {