Simplify double-inheritance of Trino dialect from Presto dialect

All the Presto mixins are already inherited into the Trino dialect via its base class, so there is no need to duplicate the mixins.

Author: Sergey Vasilyev

data_diff/databases/trino.py

@@ -2,7 +2,6 @@
 
 import attrs
 
-from data_diff.abcs.mixins import AbstractMixin_MD5, AbstractMixin_NormalizeValue
 from data_diff.abcs.database_types import TemporalType, ColType_UUID
 from data_diff.databases import presto
 from data_diff.databases.base import import_helper
@@ -16,11 +15,9 @@ def import_trino():
     return trino
 
 
-Mixin_MD5 = presto.Mixin_MD5
-
+class Dialect(presto.Dialect):
+    name = "Trino"
 
-@attrs.define(frozen=False)
-class Mixin_NormalizeValue(presto.Mixin_NormalizeValue):
     def normalize_timestamp(self, value: str, coltype: TemporalType) -> str:
         if coltype.rounds:
             s = f"date_format(cast({value} as timestamp({coltype.precision})), '%Y-%m-%d %H:%i:%S.%f')"
@@ -35,10 +32,6 @@ def normalize_uuid(self, value: str, coltype: ColType_UUID) -> str:
         return f"TRIM({value})"
 
 
-class Dialect(presto.Dialect, Mixin_MD5, Mixin_NormalizeValue, AbstractMixin_MD5, AbstractMixin_NormalizeValue):
-    name = "Trino"
-
-
 @attrs.define(frozen=False, init=False, kw_only=True)
 class Trino(presto.Presto):
     dialect = Dialect()