docs(cookbook): remove the cookbook docs

The cookbook docs are now superceded by the guide. They are no longer available
in any menus and the only way to find them is to search for them. Remove!

Closes #5967

Author: juliemr

docs/component-spec/docsSearchSpec.js

@@ -13,8 +13,7 @@ describe("docsSearch", function() {
       results[0] = { section: 'tutorial', shortName: 'item one', keywords: 'item, one, 1' };
       results[1] = { section: 'tutorial', shortName: 'item man', keywords: 'item, man' };
       results[2] = { section: 'api', shortName: 'item other', keywords: 'item, other' };
-      results[3] = { section: 'cookbook', shortName: 'item cookbook', keywords: 'item, other' };
-      results[4] = { section: 'api', shortName: 'ngRepeat', keywords: 'item, other' };
+      results[3] = { section: 'api', shortName: 'ngRepeat', keywords: 'item, other' };
 
       $provide.value('NG_PAGES', results);
       $provide.factory('lunrSearch', function() {
@@ -41,19 +40,14 @@ describe("docsSearch", function() {
     expect(items['api'].length).toBe(2);
   }));
 
-  it("should place cookbook items in the tutorial", inject(function(docsSearch) {
-    var items = docsSearch('item');
-    expect(items['tutorial'].length).toBe(3);
-  }));
-
   it("should return all results without a search", inject(function(docsSearch) {
     var items = docsSearch();
-    expect(items['tutorial'].length).toBe(3);
+    expect(items['tutorial'].length).toBe(2);
     expect(items['api'].length).toBe(2);
   }));
 
   it("should store values with and without a ng prefix", inject(function(docsSearch) {
-    expect(interceptedLunrResults[4].title).toBe('ngRepeat repeat');
+    expect(interceptedLunrResults[3].title).toBe('ngRepeat repeat');
   }));
 
 });