[IMP] odoo: remove LazyCursor

Was specifically created for decimal.precision at f0646cb51b
Should no longer be needed

odoo/sql_db.py

@@ -483,40 +483,6 @@ class TestCursor(object):
         return value
 
 
-class LazyCursor(object):
-    """ A proxy object to a cursor. The cursor itself is allocated only if it is
-        needed. This class is useful for cached methods, that use the cursor
-        only in the case of a cache miss.
-    """
-    def __init__(self, dbname=None):
-        self._dbname = dbname
-        self._cursor = None
-        self._depth = 0
-
-    @property
-    def dbname(self):
-        return self._dbname or threading.currentThread().dbname
-
-    def __getattr__(self, name):
-        cr = self._cursor
-        if cr is None:
-            from odoo import registry
-            cr = self._cursor = registry(self.dbname).cursor()
-            for _ in range(self._depth):
-                cr.__enter__()
-        return getattr(cr, name)
-
-    def __enter__(self):
-        self._depth += 1
-        if self._cursor is not None:
-            self._cursor.__enter__()
-        return self
-
-    def __exit__(self, exc_type, exc_value, traceback):
-        self._depth -= 1
-        if self._cursor is not None:
-            self._cursor.__exit__(exc_type, exc_value, traceback)
-
 class PsycoConnection(psycopg2.extensions.connection):
     pass