diff --git a/awx/main/models/schedules.py b/awx/main/models/schedules.py
index 394cd556b2..09fd755d62 100644
--- a/awx/main/models/schedules.py
+++ b/awx/main/models/schedules.py
@@ -19,6 +19,7 @@ from awx.main.models.jobs import LaunchTimeConfig
 from awx.main.utils import ignore_inventory_computed_fields
 from awx.main.consumers import emit_channel_notification
 
+
 logger = logging.getLogger('awx.main.models.schedule')
 
 __all__ = ['Schedule']
@@ -91,40 +92,6 @@ class Schedule(CommonModel, LaunchTimeConfig):
         help_text=_("The next time that the scheduled action will run.")
     )
 
-    # extra_data is actually a string with a JSON payload in it. This
-    # is technically OK because a string is a valid JSON. One day we will
-    # enforce non-string JSON.
-    def _clean_extra_data_system_jobs(self):
-        extra_data = self.extra_data
-        if not isinstance(extra_data, dict):
-            try:
-                extra_data = json.loads(self.extra_data)
-            except Exception:
-                raise ValidationError(_("Expected JSON"))
-
-        if extra_data and 'days' in extra_data:
-            try:
-                if type(extra_data['days']) is bool:
-                    raise ValueError
-                if float(extra_data['days']) != int(extra_data['days']):
-                    raise ValueError
-                days = int(extra_data['days'])
-                if days < 0:
-                    raise ValueError
-            except ValueError:
-                raise ValidationError(_("days must be a positive integer."))
-        return self.extra_data
-
-    def clean_extra_data(self):
-        if not self.unified_job_template:
-            return self.extra_data
-
-        # Compare class by string name because it's hard to import SystemJobTemplate
-        if type(self.unified_job_template).__name__ is not 'SystemJobTemplate':
-            return self.extra_data
-
-        return self._clean_extra_data_system_jobs()
-
     def __unicode__(self):
         return u'%s_t%s_%s_%s' % (self.name, self.unified_job_template.id, self.id, self.next_run)