make all built-in services lazy

now that we require DI everywhere, we don't need any of these
services to be eager - they get initialized when and only when
they are requested.

src/service/defer.js

@@ -16,8 +16,6 @@
  * @param {function()} fn A function, who's execution should be deferred.
  */
 angularServiceInject('$defer', function($browser, $exceptionHandler, $updateView) {
-  var scope = this;
-
   return function(fn) {
     $browser.defer(function() {
       try {

src/service/document.js

@@ -10,4 +10,4 @@
  */
 angularServiceInject("$document", function(window){
   return jqLite(window.document);
-}, ['$window'], true);
+}, ['$window']);

src/service/exceptionHandler.js

@@ -19,4 +19,4 @@ angularServiceInject('$exceptionHandler', $exceptionHandlerFactory = function($l
   return function(e) {
     $log.error(e);
   };
-}, ['$log'], true);
+}, ['$log']);

src/service/hover.js

@@ -53,4 +53,4 @@ angularServiceInject("$hover", function(browser, document) {
       tooltip = _null;
     }
   });
-}, ['$browser', '$document'], true);
+}, ['$browser', '$document']);

src/service/invalidWidgets.js

@@ -64,4 +64,4 @@ angularServiceInject("$invalidWidgets", function(){
   }
 
   return invalidWidgets;
-}, [], true);
+});

src/service/log.js

@@ -89,4 +89,4 @@ angularServiceInject("$log", $logFactory = function($window){
       return logFn;
     }
   }
-}, ['$window'], true);
+}, ['$window']);

src/service/window.js

@@ -22,4 +22,4 @@
      </doc:scenario>
    </doc:example>
  */
-angularServiceInject("$window", bind(window, identity, window), [], true);
+angularServiceInject("$window", bind(window, identity, window));