Removed 'content' property from page node type

... because it doesn't work when it's there.

pillar/api/node_types/page.py

@@ -4,13 +4,6 @@ node_type_page = {
     'name': 'page',
     'description': 'A single page',
     'dyn_schema': {
-        # The page content (Markdown format)
-        'content': {
-            'type': 'string',
-            'minlength': 5,
-            'maxlength': 90000,
-            'required': True
-        },
         'status': {
             'type': 'string',
             'allowed': [