Revert "importer: Purge any redundant entries"

This reverts commit c2cc55d5.

The query stalls the database and therefore the automatic
scripts are no longer able to generate a new version of the
database.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/python/location-importer.in

@@ -374,27 +374,7 @@ class CLI(object):
 				INSERT INTO autnums(number, name)
 					SELECT _autnums.number, _organizations.name FROM _autnums
 						JOIN _organizations ON _autnums.organization = _organizations.handle
-				ON CONFLICT (number) DO UPDATE SET name = excluded.name
-			""")
-
-			self.db.execute("""
-				--- Purge any redundant entries
-				CREATE TEMPORARY TABLE _garbage ON COMMIT DROP
-				AS
-				SELECT network FROM networks candidates
-				WHERE EXISTS (
-					SELECT FROM networks
-					WHERE
-						networks.network << candidates.network
-					AND
-						networks.country = candidates.country
-				);
-
-				CREATE UNIQUE INDEX _garbage_search ON _garbage USING BTREE(network);
-
-				DELETE FROM networks WHERE EXISTS (
-					SELECT FROM _garbage WHERE networks.network = _garbage.network
-				);
+				ON CONFLICT (number) DO UPDATE SET name = excluded.name;
 			""")
 
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