remove spurious db.sql

extra/db/db.factor

@@ -10,7 +10,6 @@ C: <db> db ( handle -- obj )
 ! HOOK: db-create db ( str -- )
 ! HOOK: db-drop db ( str -- )
 GENERIC: db-open ( db -- )
-GENERIC: db-close ( db -- )
 
 TUPLE: statement sql params handle bound? ;
 

extra/db/sqlite/sqlite-tests.factor

@@ -1,5 +1,5 @@
 USING: io io.files io.launcher kernel namespaces
-prettyprint tools.test db.sqlite db db.sql sequences
+prettyprint tools.test db.sqlite db sequences
 continuations ;
 IN: temporary
 

extra/db/sqlite/sqlite.factor

@@ -1,6 +1,6 @@
 ! Copyright (C) 2005, 2008 Chris Double, Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: alien arrays assocs classes compiler db db.sql
+USING: alien arrays assocs classes compiler db
 hashtables io.files kernel math math.parser namespaces
 prettyprint sequences strings tuples alien.c-types
 continuations db.sqlite.lib db.sqlite.ffi ;