Remove Intellicode extension from devcontainer (home-assistant#157894)

Author: felipecrs

.devcontainer/devcontainer.json

@@ -27,7 +27,6 @@
         "charliermarsh.ruff",
         "ms-python.pylint",
         "ms-python.vscode-pylance",
-        "visualstudioexptteam.vscodeintellicode",
         "redhat.vscode-yaml",
         "esbenp.prettier-vscode",
         "GitHub.vscode-pull-request-github",