Remove carriage returns from LayoutTests (18)

LayoutTests/ietestcenter/Javascript/TestCases/15.7.3.1-1.js

 /// Copyright (c) 2009 Microsoft Corporation 
 /// 
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 /// that the following conditions are met: 
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 ///      the following disclaimer. 
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 ///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
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@@ skipping 22 matching lines @@
       d.enumerable === false &&
       d.configurable === false) {
     return true;
   }
  },
 
 precondition: function prereq() {
   return fnExists(Object.getOwnPropertyDescriptor);
  }
 });