Remove simple-host and simple-server examples

These legacy examples have been replaced by basic-host,
basic-server-react, and basic-server-vanillajs.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

package-lock.json

@@ -112,6 +112,7 @@
     "examples/simple-host": {
       "name": "@modelcontextprotocol/ext-apps-host",
       "version": "1.0.0",
+      "extraneous": true,
       "dependencies": {
         "@modelcontextprotocol/ext-apps": "../..",
         "@modelcontextprotocol/sdk": "^1.22.0",
@@ -137,6 +138,7 @@
     },
     "examples/simple-server": {
       "version": "1.0.0",
+      "extraneous": true,
       "dependencies": {
         "@modelcontextprotocol/ext-apps": "../..",
         "@modelcontextprotocol/sdk": "^1.22.0",
@@ -477,10 +479,6 @@
       "resolved": "examples/basic-host",
       "link": true
     },
-    "node_modules/@modelcontextprotocol/ext-apps-host": {
-      "resolved": "examples/simple-host",
-      "link": true
-    },
     "node_modules/@modelcontextprotocol/sdk": {
       "version": "1.23.0",
       "license": "MIT",
@@ -2841,10 +2839,6 @@
       "dev": true,
       "license": "ISC"
     },
-    "node_modules/simple-server": {
-      "resolved": "examples/simple-server",
-      "link": true
-    },
     "node_modules/simple-update-notifier": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/simple-update-notifier/-/simple-update-notifier-2.0.0.tgz",