[IMP] analytic: remove sql view that prevents column changings

Small fix for error (similar to #159):

```
2014-12-12 09:25:21,861 23335 ERROR testdb openerp.sql_db: bad query: ALTER TABLE "account_analytic_line" ALTER COLUMN "name" TYPE VARCHAR
Traceback (most recent call last):
  File "/var/tmp/openupgrade/8.0/server/openerp/sql_db.py", line 234, in execute
    res = self._obj.execute(query, params)
NotSupportedError: cannot alter type of a column used by a view or rule
DETAIL:  rule _RETURN on view analytic_entries_report depends on column "name"
```