refactor($parse): remove unused variables

Closes: #13579

Author: thorn0

src/ng/parse.js

@@ -1660,9 +1660,6 @@ Parser.prototype = {
   }
 };
 
-var getterFnCacheDefault = createMap();
-var getterFnCacheExpensive = createMap();
-
 function isPossiblyDangerousMemberName(name) {
   return name == 'constructor';
 }

test/ng/parseSpec.js

@@ -2,15 +2,6 @@
 
 describe('parser', function() {
 
-  beforeEach(function() {
-    /* global getterFnCacheDefault: true */
-    /* global getterFnCacheExpensive: true */
-    // clear caches
-    getterFnCacheDefault = createMap();
-    getterFnCacheExpensive = createMap();
-  });
-
-
   describe('lexer', function() {
     var lex;