Get rid of submit/error_manager.py which is apparently unused

- Legacy-Id: 6656

ietf/submit/error_manager.py

@@ -1,19 +0,0 @@
-from ietf.submit.models import IdSubmissionStatus
-
-class ErrorManager(object):
-    ERROR_CODES = {
-        'DEFAULT': 'Unknow error',
-        'INVALID_FILENAME': 111,
-        'EXCEEDED_SIZE': 102,
-    }
-
-    def get_error_str(self, key):
-        error_code = self.ERROR_CODES.get(key, self.ERROR_CODES['DEFAULT'])
-        if isinstance(error_code, basestring):
-            return '%s (%s)' % (key, error_code)
-        try:
-            return IdSubmissionStatus.objects.get(status_id=error_code).status_value
-        except IdSubmissionStatus.DoesNotExist:
-            return '%s (%s)' % (self.ERROR_CODES['DEFAULT'], key)
-
-MainErrorManager=ErrorManager()