docs(jsdoc): remove @kind function for providers

This gets rid of the bizarre "Usage: fooProvider();" which does not really communicate anything useful.

Closes #8809

src/ng/compile.js

@@ -558,7 +558,6 @@ var $compileMinErr = minErr('$compile');
 /**
  * @ngdoc provider
  * @name $compileProvider
- * @kind function
  *
  * @description
  */

src/ng/interpolate.js

@@ -5,7 +5,6 @@ var $interpolateMinErr = minErr('$interpolate');
 /**
  * @ngdoc provider
  * @name $interpolateProvider
- * @kind function
  *
  * @description
  *

src/ng/parse.js

@@ -997,7 +997,6 @@ function getterFn(path, options, fullExp) {
 /**
  * @ngdoc provider
  * @name $parseProvider
- * @kind function
  *
  * @description
  * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}

src/ngRoute/route.js

@@ -23,7 +23,6 @@ var ngRouteModule = angular.module('ngRoute', ['ng']).
 /**
  * @ngdoc provider
  * @name $routeProvider
- * @kind function
  *
  * @description
  *