diff -r 058bb3dc685f -r 0b59724cb3f2 misc/migration/3.8.5_Any.py
--- a/misc/migration/3.8.5_Any.py	Mon Jan 04 18:40:30 2016 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,61 +0,0 @@
-from __future__ import print_function
-
-def migrate_varchar_to_nvarchar():
-    dbdriver  = config.system_source_config['db-driver']
-    if dbdriver != "sqlserver2005":
-        return
-
-    introspection_sql = """\
-SELECT table_schema, table_name, column_name, is_nullable, character_maximum_length
-FROM information_schema.columns
-WHERE data_type = 'VARCHAR' and table_name <> 'SYSDIAGRAMS'
-"""
-    has_index_sql = """\
-SELECT i.name AS index_name,
-       i.type_desc,
-       i.is_unique,
-       i.is_unique_constraint
-FROM sys.indexes AS i, sys.index_columns as j, sys.columns as k
-WHERE is_hypothetical = 0 AND i.index_id <> 0
-AND i.object_id = j.object_id
-AND i.index_id = j.index_id
-AND i.object_id = OBJECT_ID('%(table)s')
-AND k.name = '%(col)s'
-AND k.object_id=i.object_id
-AND j.column_id = k.column_id;"""
-
-    generated_statements = []
-    for schema, table, column, is_nullable, length in sql(introspection_sql, ask_confirm=False):
-        qualified_table = '[%s].[%s]' % (schema, table)
-        rset = sql(has_index_sql % {'table': qualified_table, 'col':column},
-                   ask_confirm = False)
-        drops = []
-        creates = []
-        for idx_name, idx_type, idx_unique, is_unique_constraint in rset:
-            if is_unique_constraint:
-                drops.append('ALTER TABLE %s DROP CONSTRAINT %s' % (qualified_table, idx_name))
-                creates.append('ALTER TABLE %s ADD CONSTRAINT %s UNIQUE (%s)' % (qualified_table, idx_name, column))
-            else:
-                drops.append('DROP INDEX %s ON %s' % (idx_name, qualified_table))
-                if idx_unique:
-                    unique = 'UNIQUE'
-                else:
-                    unique = ''
-                creates.append('CREATE %s %s INDEX %s ON %s(%s)' % (unique, idx_type, idx_name, qualified_table, column))
-
-        if length == -1:
-            length = 'max'
-        if is_nullable == 'YES':
-            not_null = 'NULL'
-        else:
-            not_null = 'NOT NULL'
-        alter_sql = 'ALTER TABLE %s ALTER COLUMN %s NVARCHAR(%s) %s' % (qualified_table, column, length, not_null)
-        generated_statements+= drops + [alter_sql] + creates
-
-
-    for statement in generated_statements:
-        print(statement)
-        sql(statement, ask_confirm=False)
-    commit()
-
-migrate_varchar_to_nvarchar()