remove deprecated extension

Author: kurowski

local/share/vscode/extensions.json

@@ -6,7 +6,6 @@
     "dbaeumer.vscode-eslint",
     "eamodio.gitlens",
     "GitHub.codespaces",
-    "GitHub.copilot",
     "GitHub.copilot-chat",
     "GitHub.remotehub",
     "github.vscode-github-actions",