Fix add_job json parsing

server.py

@@ -105,12 +105,6 @@ def add_job():
 
     try:
         """Create new job and add to server render queue"""
-        if request.is_json:
-            request_params = request.get_json()
-        else:
-            # handle request values from HTML pages - may deprecate if HTML is not used or can pass JSON from HTML
-            request_params = request.values
-
         json_string = request.form.get('json', None)
         if not json_string:
             return 'missing json data', 400