doc: Update authenticated capsules documentation

Now that we moved out the capsule signature from the DTB, remove the
relevant documentation.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

diff --git a/doc/develop/uefi/uefi.rst b/doc/develop/uefi/uefi.rst
index 48d6110b2ad189aae1246f73b5cd13e206822643..3ca22b572a9200baaeda10abab51708477771adc 100644 (file)
--- a/doc/develop/uefi/uefi.rst
+++ b/doc/develop/uefi/uefi.rst
@@ -597,21 +597,6 @@ and used by the steps highlighted below.
       [--fit | --raw | --guid <guid-string] \
       <image_blob> <capsule_file_name>
 
-4. Insert the signature list into a device tree in the following format::
-
-    {
-            signature {
-                    capsule-key = [ <binary of signature list> ];
-            }
-            ...
-    }
-
-You can perform step-4 through the Kconfig symbol
-CONFIG_EFI_CAPSULE_CRT_FILE. This symbol points to the signing key
-generated in step-2. As part of U-Boot build, the ESL certificate file will
-be generated from the signing key and automatically get embedded into the
-platform's dtb.
-
 Anti-rollback Protection
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