diff --git a/cryptography/hazmat/backends/interfaces.py b/cryptography/hazmat/backends/interfaces.py
index 9a57096..4fbb348 100644
--- a/cryptography/hazmat/backends/interfaces.py
+++ b/cryptography/hazmat/backends/interfaces.py
@@ -26,12 +26,6 @@
         """
 
     @abc.abstractmethod
-    def register_cipher_adapter(self, cipher, mode, adapter):
-        """
-        Register an adapter for a cipher and mode to a backend specific object.
-        """
-
-    @abc.abstractmethod
     def create_symmetric_encryption_ctx(self, cipher, mode):
         """
         Get a CipherContext that can be used for encryption.
diff --git a/docs/hazmat/backends/interfaces.rst b/docs/hazmat/backends/interfaces.rst
index 5b6cd64..11e2f2a 100644
--- a/docs/hazmat/backends/interfaces.rst
+++ b/docs/hazmat/backends/interfaces.rst
@@ -33,25 +33,6 @@
         :returns: ``True`` if the specified ``cipher`` and ``mode`` combination
             is supported by this backend, otherwise ``False``
 
-    .. method:: register_cipher_adapter(cipher_cls, mode_cls, adapter)
-
-        Register an adapter which can be used to create a backend specific
-        object from instances of the
-        :class:`~cryptography.hazmat.primitives.interfaces.CipherAlgorithm` and
-        the :class:`~cryptography.hazmat.primitives.interfaces.Mode` primitives.
-
-        :param cipher_cls: A class whose instances provide
-            :class:`~cryptography.hazmat.primitives.interfaces.CipherAlgorithm`
-        :param mode_cls: A class whose instances provide:
-            :class:`~cryptography.hazmat.primitives.interfaces.Mode`
-        :param adapter: A ``function`` that takes 3 arguments, ``backend`` (a
-            :class:`CipherBackend` provider), ``cipher`` (a
-            :class:`~cryptography.hazmat.primitives.interfaces.CipherAlgorithm`
-            provider ), and ``mode`` (a
-            :class:`~cryptography.hazmat.primitives.interfaces.Mode` provider).
-            It returns a backend specific object which may be used to construct
-            a :class:`~cryptogrpahy.hazmat.primitives.interfaces.CipherContext`.
-
 
     .. method:: create_symmetric_encryption_ctx(cipher, mode)