new-mtl-releases.md: remove removed feature

Signed-off-by: Filip Gołaś <[email protected]>

blog/content/post/2024-07-23-new-mtl-releases.md

@@ -83,12 +83,6 @@ which are trusted using cryptographic signatures embedded in the
 firmware. Check the link in the header for more details.
 ![UEFI Secure Boot](/img/secure_boot.png)
 
-### [Automatic Embedded Controller update](https://docs.dasharo.com/unified-test-documentation/dasharo-compatibility/31G-ec-and-superio/#ecr031001-ec-firmware-sync-in-coreboot)
-
-The feature allows updating the Embedded Controller firmware easily
-alongside updating the BIOS firmware.
-Check out the link in the section title for more details.
-
 ### [Firmware update mode](https://docs.dasharo.com/guides/firmware-update/#firmware-update-mode)
 
 The Firmware Update Mode is a quick way of ensuring your device