JS code

var tables = document.querySelectorAll("tbody"); 
var rows = tables[0].querySelectorAll("tr"); 
for (var j = rows.length-1; j >= 0; j--)     {        
 var row = rows[j];         
 if(row.className=="center nob-border")             
 	{                 
 		tables[0].deleteRow(j);             
 	}         
 	else if(row.className=="table-dummyrow")  {
 		tables[0].deleteRow(j);
 	}
}