Undo changes to cube equality

bouweandela · Jan 18, 2024 · 920120a · 920120a
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diff --git a/docs/src/whatsnew/latest.rst b/docs/src/whatsnew/latest.rst
@@ -100,8 +100,7 @@ This document explains the changes made to Iris for this release
    lazy data from file. This will also speed up coordinate comparison.
    (:pull:`5610`)
 
-#. `@bouweandela`_ made comparing coordinates, cubes, and arrays to themselves
-   faster. (:pull:`5691`)
+#. `@bouweandela`_ made comparing coordinates and arrays to themselves faster. (:pull:`5691`)
 
 
 🔥 Deprecations

diff --git a/lib/iris/cube.py b/lib/iris/cube.py
@@ -3826,9 +3826,6 @@ def _deepcopy(self, memo, data=None):
 
     # START OPERATOR OVERLOADS
     def __eq__(self, other):
-        if other is self:
-            return True
-
         result = NotImplemented
 
         if isinstance(other, Cube):