diff --git a/django/utils/safestring.py b/django/utils/safestring.py
index 5128add622..93d74f602d 100644
--- a/django/utils/safestring.py
+++ b/django/utils/safestring.py
@@ -18,27 +18,6 @@ class SafeData:
         return self
 
 
-class SafeBytes(bytes, SafeData):
-    """
-    A bytes subclass that has been specifically marked as "safe" (requires no
-    further escaping) for HTML output purposes.
-
-    Kept in Django 2.0 for usage by apps supporting Python 2. Shouldn't be used
-    in Django anymore.
-    """
-    def __add__(self, rhs):
-        """
-        Concatenating a safe byte string with another safe byte string or safe
-        string is safe. Otherwise, the result is no longer safe.
-        """
-        t = super().__add__(rhs)
-        if isinstance(rhs, SafeText):
-            return SafeText(t)
-        elif isinstance(rhs, SafeBytes):
-            return SafeBytes(t)
-        return t
-
-
 class SafeText(str, SafeData):
     """
     A str subclass that has been specifically marked as "safe" for HTML output
diff --git a/docs/releases/3.0.txt b/docs/releases/3.0.txt
index 19361cc195..a657a4b0a0 100644
--- a/docs/releases/3.0.txt
+++ b/docs/releases/3.0.txt
@@ -274,6 +274,8 @@ Django 3.0, we're removing these APIs at this time.
 * ``django.utils.functional.curry()`` - Use :func:`functools.partial` or
   :class:`functools.partialmethod`. See :commit:`5b1c389603a353625ae1603`.
 
+* ``django.utils.safestring.SafeBytes`` - Unused since Django 2.0.
+
 Miscellaneous
 -------------