From 0d1218896f3dcd9a37d44c123d936e5fe8cea416 Mon Sep 17 00:00:00 2001
From: Anderson Resende <andersonresende86@gmail.com>
Date: Wed, 27 Jul 2016 08:34:44 -0300
Subject: [PATCH] Fixed #26950 -- Removed obsolete DatabaseOperations SQL
 methods.

Unused as of 2b039d966f6e61a5ffb5ffac25aa198f9043de3d.
---
 django/db/backends/base/operations.py    | 13 -------------
 django/db/backends/mysql/operations.py   |  3 ---
 django/db/backends/oracle/operations.py  |  3 ---
 django/db/backends/sqlite3/operations.py |  3 ---
 4 files changed, 22 deletions(-)

diff --git a/django/db/backends/base/operations.py b/django/db/backends/base/operations.py
index bf9af0149a..4e5814e58f 100644
--- a/django/db/backends/base/operations.py
+++ b/django/db/backends/base/operations.py
@@ -152,19 +152,6 @@ class BaseDatabaseOperations(object):
         else:
             return 'DISTINCT'
 
-    def drop_foreignkey_sql(self):
-        """
-        Returns the SQL command that drops a foreign key.
-        """
-        return "DROP CONSTRAINT"
-
-    def drop_sequence_sql(self, table):
-        """
-        Returns any SQL necessary to drop the sequence for the given table.
-        Returns None if no SQL is necessary.
-        """
-        return None
-
     def fetch_returned_insert_id(self, cursor):
         """
         Given a cursor object that has just performed an INSERT...RETURNING
diff --git a/django/db/backends/mysql/operations.py b/django/db/backends/mysql/operations.py
index f0fd8314ae..659ee2e2ce 100644
--- a/django/db/backends/mysql/operations.py
+++ b/django/db/backends/mysql/operations.py
@@ -97,9 +97,6 @@ class DatabaseOperations(BaseDatabaseOperations):
         else:
             return 'INTERVAL FLOOR(%s / 1000000) SECOND' % sql
 
-    def drop_foreignkey_sql(self):
-        return "DROP FOREIGN KEY"
-
     def force_no_ordering(self):
         """
         "ORDER BY NULL" prevents MySQL from implicitly ordering by grouped
diff --git a/django/db/backends/oracle/operations.py b/django/db/backends/oracle/operations.py
index 3761ed0df1..3ea45cb3bf 100644
--- a/django/db/backends/oracle/operations.py
+++ b/django/db/backends/oracle/operations.py
@@ -241,9 +241,6 @@ WHEN (new.%(col_name)s IS NULL)
     def deferrable_sql(self):
         return " DEFERRABLE INITIALLY DEFERRED"
 
-    def drop_sequence_sql(self, table):
-        return "DROP SEQUENCE %s;" % self.quote_name(self._get_sequence_name(table))
-
     def fetch_returned_insert_id(self, cursor):
         return int(cursor._insert_id_var.getvalue())
 
diff --git a/django/db/backends/sqlite3/operations.py b/django/db/backends/sqlite3/operations.py
index bf3002b79b..65847bd5ef 100644
--- a/django/db/backends/sqlite3/operations.py
+++ b/django/db/backends/sqlite3/operations.py
@@ -108,9 +108,6 @@ class DatabaseOperations(BaseDatabaseOperations):
         # cause a collision with a field name).
         return "django_time_extract('%s', %s)" % (lookup_type.lower(), field_name)
 
-    def drop_foreignkey_sql(self):
-        return ""
-
     def pk_default_value(self):
         return "NULL"