Merge "pin asyncmy>=0.2.0 and remove cursor close workarounds"

diff --cc lib/sqlalchemy/dialects/mysql/asyncmy.py
index fb96cd6866d29f60567e1b09069293ad87efd7a3,badf6e389b4185adb186123d0fc727b06f374165..0fca338f561792eff1392c1b59629ac1fb5fedb9
--- 1/lib/sqlalchemy/dialects/mysql/asyncmy.py
--- 2/lib/sqlalchemy/dialects/mysql/asyncmy.py
+++ b/lib/sqlalchemy/dialects/mysql/asyncmy.py
@@@ -178,9 -171,9 +172,9 @@@ class AsyncAdapt_asyncmy_ss_cursor(Asyn
          return self.await_(self._cursor.fetchall())
  
  
 -class AsyncAdapt_asyncmy_connection:
 +class AsyncAdapt_asyncmy_connection(AdaptedConnection):
      await_ = staticmethod(await_only)
-     __slots__ = ("dbapi", "_connection", "_execute_mutex", "_ss_cursors")
+     __slots__ = ("dbapi", "_connection", "_execute_mutex")
  
      def __init__(self, dbapi, connection):
          self.dbapi = dbapi