Prune wiki examples in legacy routing spec

Destroy routes should only need to support the DELETE verb.

Signed-off-by: Alex Coles <alex@alexbcoles.com>

spec/legacy/integration/routing_spec.rb

@@ -843,22 +843,11 @@ describe 'routing', type: :routing do
   end
 
   context 'wikis (plural, admin setup)' do
-    it {
-      is_expected.to route(:get, '/projects/ladida/wiki/destroy').to(controller: 'wikis',
-                                                                     action: 'destroy',
-                                                                     id: 'ladida')
-    }
-
     it {
       is_expected.to route(:post, '/projects/ladida/wiki').to(controller: 'wikis',
                                                               action: 'edit',
                                                               id: 'ladida')
     }
-    it {
-      is_expected.to route(:post, '/projects/ladida/wiki/destroy').to(controller: 'wikis',
-                                                                      action: 'destroy',
-                                                                      id: 'ladida')
-    }
   end
 
   context 'administration panel' do