Add SanicBase

sanic/mixins/base.py

@@ -1,19 +0,0 @@
-class Base(type):
-    def __new__(cls, name, bases, attrs):
-        init = attrs.get("__init__")
-
-        def __init__(self, *args, **kwargs):
-            nonlocal init
-            for base in type(self).__bases__:
-                if base.__name__ != "BaseMixin":
-                    base.__init__(self, *args, **kwargs)
-
-            if init:
-                init(self, *args, **kwargs)
-
-        attrs["__init__"] = __init__
-        return type.__new__(cls, name, bases, attrs)
-
-
-class BaseMixin(metaclass=Base):
-    ...