Removed the examples from the CI

Author: ArisMorgens

.github/workflows/CI.yml

@@ -99,9 +99,6 @@ jobs:
         - examples/app_peer_to_peer
         - examples/app_p2p_DTR
         - examples/app_stm_gap8_cpx
-        - examples/demos/app_push_demo
-        - examples/demos/swarm_demo
-        - examples/demos/app_wall_following_demo
     env:
       EXAMPLE: ${{ matrix.example }}