Editorial: remove extra 'function' word

spec.html

@@ -10516,7 +10516,7 @@ <h1>WithBaseObject ( ): an Object or *undefined*</h1>
 
       <emu-clause id="sec-function-environment-records" oldids="function-environment">
         <h1>Function Environment Records</h1>
-        <p>A <dfn variants="Function Environment Records">Function Environment Record</dfn> is a Declarative Environment Record that is used to represent the top-level scope of a function and, if the function is not an |ArrowFunction|, provides a `this` binding. If a function is not an |ArrowFunction| function and references `super`, its Function Environment Record also contains the state that is used to perform `super` method invocations from within the function.</p>
+        <p>A <dfn variants="Function Environment Records">Function Environment Record</dfn> is a Declarative Environment Record that is used to represent the top-level scope of a function and, if the function is not an |ArrowFunction|, provides a `this` binding. If a function is not an |ArrowFunction| and references `super`, its Function Environment Record also contains the state that is used to perform `super` method invocations from within the function.</p>
         <p>Function Environment Records have the additional state fields listed in <emu-xref href="#table-additional-fields-of-function-environment-records"></emu-xref>.</p>
         <emu-table id="table-additional-fields-of-function-environment-records" caption="Additional Fields of Function Environment Records" oldids="table-16">
           <table>