Dart: remove count in clear completed button

examples/vanilladart/build/web/dart/app.dart.js

@@ -4312,8 +4312,8 @@ z="<strong>"+x+"</strong> item"
 J.Qy(this.e,z+(x!==1?"s":"")+" left")
 z=this.f
 if(y===0)J.Y(z.style,"none")
-else{J.Y(z.style,"block")
-z.textContent="Clear completed ("+y+")"}this.nW()},
+else J.Y(z.style,"block")
+this.nW()},
 nW:function(){switch(window.location.hash){case"#/active":this.dK()
 break
 case"#/completed":this.bI()

examples/vanilladart/web/dart/TodoApp.dart

@@ -99,7 +99,6 @@ class TodoApp {
       clearCompletedElement.style.display = 'none';
     } else {
       clearCompletedElement.style.display = 'block';
-      clearCompletedElement.text = 'Clear completed ($complete)';
     }
     updateFilter();
   }