[ExpressionLanguage] Remove array element

The expressions "life == everything" and "life > everything" don't require the "universe" element.

Author: sebpacz

components/expression_language/syntax.rst

@@ -204,7 +204,6 @@ Examples::
         'life == everything',
         [
             'life' => 10,
-            'universe' => 10,
             'everything' => 22,
         ]
     );
@@ -213,7 +212,6 @@ Examples::
         'life > everything',
         [
             'life' => 10,
-            'universe' => 10,
             'everything' => 22,
         ]
     );