Refs #27420 -- Removed exception hiding in Oracle test user creation during --keepdb.

If the test user creation fails here, _create_test_db() would return without
switching to the test user which caused the tests to run using the main
connection instead of the test user.

django/db/backends/oracle/creation.py

@@ -77,9 +77,6 @@ class DatabaseCreation(BaseDatabaseCreation):
             try:
                 self._create_test_user(cursor, parameters, verbosity, keepdb)
             except Exception as e:
-                # If we want to keep the db, then we want to also keep the user.
-                if keepdb:
-                    return
                 sys.stderr.write("Got an error creating the test user: %s\n" % e)
                 if not autoclobber:
                     confirm = input(