Remove carriage returns from LayoutTests (18)

LayoutTests/ietestcenter/Javascript/TestCases/15.9.4.4-0-1.js

 /// Copyright (c) 2009 Microsoft Corporation 
 /// 
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 /// that the following conditions are met: 
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@@ skipping 15 matching lines @@
 
 description: "Date.now must exist as a function",
 
 test: function testcase() {
   var f = Date.now;
   if (typeof(f) === "function") {
     return true;
   }
  }
 });