saferepr: Remove unused setting of max_other

max_other is used by the superclass repr_instance, but we override it
and use maxsize instead.

Author: bluetech

src/_pytest/_io/saferepr.py

@@ -26,7 +26,6 @@ def __init__(self, maxsize):
         super().__init__()
         self.maxstring = maxsize
         self.maxsize = maxsize
-        self.maxother = 160
 
     def repr(self, x):
         return self._callhelper(reprlib.Repr.repr, self, x)