Remove unnecessary code in tests script

tests/test_account_budget.py

@@ -1,19 +1,9 @@
 #!/usr/bin/env python
-#This file is part of Tryton.  The COPYRIGHT file at the top level of
-#this repository contains the full copyright notices and license terms.
-
-import sys
-import os
-DIR = os.path.abspath(os.path.normpath(os.path.join(__file__,
-    '..', '..', '..', '..', '..', 'trytond')))
-if os.path.isdir(DIR):
-    sys.path.insert(0, os.path.dirname(DIR))
-
+# The COPYRIGHT file at the top level of this repository contains the full
+# copyright notices and license terms.
 import unittest
-#import doctest
 import trytond.tests.test_tryton
 from trytond.tests.test_tryton import test_view, test_depends
-from trytond.backend.sqlite.database import Database as SQLiteDatabase
 
 
 class AccountBudgetTestCase(unittest.TestCase):
@@ -37,21 +27,8 @@ class AccountBudgetTestCase(unittest.TestCase):
         test_depends()
 
 
-def doctest_dropdb(test):
-    database = SQLiteDatabase().connect()
-    cursor = database.cursor(autocommit=True)
-    try:
-        database.drop(cursor, ':memory:')
-        cursor.commit()
-    finally:
-        cursor.close()
-
-
 def suite():
     suite = trytond.tests.test_tryton.suite()
     suite.addTests(unittest.TestLoader().loadTestsFromTestCase(
         AccountBudgetTestCase))
     return suite
-
-if __name__ == '__main__':
-    unittest.TextTestRunner(verbosity=2).run(suite())