chore(Angular) Remove unused functions

src/.jshintrc

@@ -57,10 +57,8 @@
     "escapeForRegexp": false,
     "isElement": false,
     "makeMap": false,
-    "size": false,
     "includes": false,
     "arrayRemove": false,
-    "isLeafNode": false,
     "copy": false,
     "shallowCopy": false,
     "equals": false,

src/Angular.js

@@ -52,10 +52,8 @@
   escapeForRegexp: true,
   isElement: true,
   makeMap: true,
-  size: true,
   includes: true,
   arrayRemove: true,
-  isLeafNode: true,
   copy: true,
   shallowCopy: true,
   equals: true,
@@ -636,34 +634,6 @@ function nodeName_(element) {
   return lowercase(element.nodeName || element[0].nodeName);
 }
 
-
-/**
- * @description
- * Determines the number of elements in an array, the number of properties an object has, or
- * the length of a string.
- *
- * Note: This function is used to augment the Object type in Angular expressions. See
- * {@link angular.Object} for more information about Angular arrays.
- *
- * @param {Object|Array|string} obj Object, array, or string to inspect.
- * @param {boolean} [ownPropsOnly=false] Count only "own" properties in an object
- * @returns {number} The size of `obj` or `0` if `obj` is neither an object nor an array.
- */
-function size(obj, ownPropsOnly) {
-  var count = 0, key;
-
-  if (isArray(obj) || isString(obj)) {
-    return obj.length;
-  } else if (isObject(obj)) {
-    for (key in obj)
-      if (!ownPropsOnly || obj.hasOwnProperty(key))
-        count++;
-  }
-
-  return count;
-}
-
-
 function includes(array, obj) {
   return Array.prototype.indexOf.call(array, obj) != -1;
 }
@@ -675,18 +645,6 @@ function arrayRemove(array, value) {
   return value;
 }
 
-function isLeafNode (node) {
-  if (node) {
-    switch (nodeName_(node)) {
-    case "option":
-    case "pre":
-    case "title":
-      return true;
-    }
-  }
-  return false;
-}
-
 /**
  * @ngdoc function
  * @name angular.copy

test/.jshintrc

@@ -54,10 +54,8 @@
     "isPromiseLike": false,
     "makeMap": false,
     "map": false,
-    "size": false,
     "includes": false,
     "arrayRemove": false,
-    "isLeafNode": false,
     "copy": false,
     "shallowCopy": false,
     "equals": false,

test/AngularSpec.js

@@ -392,34 +392,6 @@ describe('angular', function() {
     });
   });
 
-  describe('size', function() {
-    it('should return the number of items in an array', function() {
-      expect(size([])).toBe(0);
-      expect(size(['a', 'b', 'c'])).toBe(3);
-    });
-
-    it('should return the number of properties of an object', function() {
-      expect(size({})).toBe(0);
-      expect(size({a:1, b:'a', c:noop})).toBe(3);
-    });
-
-    it('should return the number of own properties of an object', function() {
-      var obj = inherit({protoProp: 'c', protoFn: noop}, {a:1, b:'a', c:noop});
-
-      expect(size(obj)).toBe(5);
-      expect(size(obj, true)).toBe(3);
-    });
-
-    it('should return the string length', function() {
-      expect(size('')).toBe(0);
-      expect(size('abc')).toBe(3);
-    });
-
-    it('should not rely on length property of an object to determine its size', function() {
-      expect(size({length:99})).toBe(1);
-    });
-  });
-
 
   describe('csp', function() {
     var originalFunction;