remove __init__ from MySQLDialect_pyodbc

Fixes: #4869

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### Description
remove __init__ from MySQLDialect_pyodbc, specifically to get rid of the convert_unicode flag

### Checklist
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This pull request is:

- [ ] A documentation / typographical error fix
	- Good to go, no issue or tests are needed
- [x] A short code fix
	- please include the issue number, and create an issue if none exists, which
	  must include a complete example of the issue.  one line code fixes without an
	  issue and demonstration will not be accepted.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.   one line code fixes without tests will not be accepted.
- [ ] A new feature implementation
	- please include the issue number, and create an issue if none exists, which must
	  include a complete example of how the feature would look.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.

**Have a nice day!**

Closes: #4884
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/4884
Pull-request-sha: d63550aca4ff9321e094fcb02105ecfa9d1076e1

Change-Id: I8986f7bf6de4d2b221106eded63576439d467c0f

1 files changed, 0 insertions, 5 deletions

diff --git a/lib/sqlalchemy/dialects/mysql/pyodbc.py b/lib/sqlalchemy/dialects/mysql/pyodbc.py
index e8d2034a1..17021812c 100644
--- a/lib/sqlalchemy/dialects/mysql/pyodbc.py
+++ b/lib/sqlalchemy/dialects/mysql/pyodbc.py
@@ -45,11 +45,6 @@ class MySQLDialect_pyodbc(PyODBCConnector, MySQLDialect):
 
     pyodbc_driver_name = "MySQL"
 
-    def __init__(self, **kw):
-        # deal with http://code.google.com/p/pyodbc/issues/detail?id=25
-        kw.setdefault("convert_unicode", True)
-        super(MySQLDialect_pyodbc, self).__init__(**kw)
-
     def _detect_charset(self, connection):
         """Sniff out the character set in use for connection results."""