Removed unused FieldGetDbPrepValueMixin.get_prep_lookup_value().

Unused since its introduction in 4f138fe5a496a81115c4fba6615a517fc62c3b17.

1 files changed, 0 insertions, 6 deletions

diff --git a/django/db/models/lookups.py b/django/db/models/lookups.py
index bd8beea53f..c3809cbf0a 100644
--- a/django/db/models/lookups.py
+++ b/django/db/models/lookups.py
@@ -171,12 +171,6 @@ class FieldGetDbPrepValueMixin(object):
     """
     get_db_prep_lookup_value_is_iterable = False
 
-    @classmethod
-    def get_prep_lookup_value(cls, value, output_field):
-        if hasattr(value, '_prepare'):
-            return value._prepare(output_field)
-        return output_field.get_prep_value(value)
-
     def get_db_prep_lookup(self, value, connection):
         # For relational fields, use the output_field of the 'field' attribute.
         field = getattr(self.lhs.output_field, 'field', None)