Revert "Add missing zod peer dependency to OpenAI and Claude samples"

This reverts commit 2626a7c.

Author: abdulanu0

nodejs/claude/sample-agent/package.json

@@ -18,7 +18,6 @@
   "dependencies": {
     "@microsoft/agents-hosting": "^1.1.0-alpha.85",
     "@microsoft/agents-a365-notifications": "^0.1.0-preview.30",
-    "zod": "^3.25.40",
     "@microsoft/agents-a365-observability": "^0.1.0-preview.30",
     "@microsoft/agents-a365-runtime": "^0.1.0-preview.30",
     "@microsoft/agents-a365-tooling": "^0.1.0-preview.30",

nodejs/openai/sample-agent/package.json

@@ -17,7 +17,6 @@
   "dependencies": {
     "@microsoft/agents-hosting": "^1.1.0-alpha.85",
     "@microsoft/agents-a365-notifications": "^0.1.0-preview.30",
-    "zod": "^3.25.40",
     "@microsoft/agents-a365-observability": "^0.1.0-preview.30",
     "@microsoft/agents-a365-runtime": "^0.1.0-preview.30",
     "@microsoft/agents-a365-tooling": "^0.1.0-preview.30",