fix: keep original bin name for mcp server

Remove the added "vapi-mcp" bin alias and retain only the original
"@vapi-ai/mcp-server" name.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: lukatmyshu

package.json

@@ -30,7 +30,6 @@
     "tool-calling"
   ],
   "bin": {
-    "vapi-mcp": "dist/index.js",
     "@vapi-ai/mcp-server": "dist/index.js"
   },
   "scripts": {