Remove obsolete deploy commands

Author: bmurty

deno.json

@@ -78,14 +78,6 @@
       "description": "Generates content for the GitHub Release description.",
       "command": "bash ./dev/release-notes.sh"
     },
-    "deploy-deno": {
-      "description": "Deploy to Deno Deploy.",
-      "command": "bash ./infra/deno-deploy/deploy-deno.sh"
-    },
-    "deploy-aws": {
-      "description": "Deploy to AWS ECS.",
-      "command": "bash ./infra/aws-ecs/deploy-aws.sh"
-    },
     "serve": {
       "description": "Start a web server to show the built site.",
       "command": "deno run --allow-net --allow-read jsr:@std/http/file-server ./_site"