doc/releases/4.22: Remove transitions from sections

Sections may not start with transitions. Remove them.

This fixes the following Sphinx error:

  ERROR: Document or section may not begin with a transition.

Change-Id: I519af83df14e44b0709dee7e338dba1ee6413f0a
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77440
Reviewed-by: Nicholas Chin <nic.c3.14@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/Documentation/releases/coreboot-4.22-relnotes.md b/Documentation/releases/coreboot-4.22-relnotes.md
index e93b325..025eaf8 100644
--- a/Documentation/releases/coreboot-4.22-relnotes.md
+++ b/Documentation/releases/coreboot-4.22-relnotes.md
@@ -13,7 +13,6 @@
   A final version of the notes are done after the release.
 
 ### Significant or interesting changes
-----------------------------------
 
 * Add changes that need a full description here
 
@@ -25,7 +24,6 @@
 * To be filled in immediately before the release by the release team
 
 ### Additional coreboot changes
----------------------------
 
 The following are changes across a number of patches, or changes worth
 noting, but not needing a full description.
@@ -33,22 +31,18 @@
 * Changes that only need a line or two of description go here.
 
 ### Platform Updates
-----------------
 
 * To be filled in immediately before the release by the release team
 
 ### Plans to move platform support to a branch
-------------------------------------------
 
 * Section to be filled in or removed after discussion
 
 ### Statistics from the 4.21 to the 4.22 release
---------------------------------------------
 
 * To be filled in immediately before the release by the release team
 
 
 ### Significant Known and Open Issues
----------------------------------
 
 * To be filled in immediately before the release by the release team