Revert "Install the latest armhf sysroot into the SDK image"

This reverts commit 9801f261.

After the discussion, it was agreed that using the sysroot
is not the right approach at this moment. This will be
re-implemented in a different way.

Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>

apertis-image-sdk.yaml

@@ -12,7 +12,6 @@
 
 {{ $size := or .size "20G" }}
 {{ $ivitools := or .ivitools "enabled" }}
-{{ $sysroot := or .sysroot "enabled" }}
 
 architecture: {{ $architecture }}
 
@@ -104,18 +103,6 @@ actions:
     script: scripts/clone-sample-repos.sh
   {{ end }}
 
-  {{ if ne $sysroot "disabled" }}
-  - action: run
-    description: Download and install the latest armhf sysroot for the {{ $suite }} release
-    chroot: true
-    command: ade sysroot install --arch armhf --release {{ $suite }}
-
-  - action: run
-    description: Remove the downloaded sysroot tarball
-    chroot: true
-    command: rm -rf /opt/sysroot/downloads
-  {{ end }}
-
   - action: run
     description: List files on {{ $image }}
     chroot: false