Remove carriage returns from LayoutTests (18)

LayoutTests/ietestcenter/Javascript/TestCases/15.7.4-1.js

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@@ skipping 19 matching lines @@
   var numProto = Object.getPrototypeOf(new Number(42));
   var s = Object.prototype.toString.call(numProto );
   return (s === '[object Number]') ;
  },
 
 precondition: function prereq() {
   return fnExists(Object.getPrototypeOf);
  }
 
 });