remove unneeded package that PR1182 added

Author: odilitime

package.json

@@ -52,7 +52,6 @@
     },
     "dependencies": {
         "@0glabs/0g-ts-sdk": "0.2.1",
-        "@ai16z/adapter-postgres": "0.1.6-alpha.4",
         "@coinbase/coinbase-sdk": "0.10.0",
         "@deepgram/sdk": "^3.9.0",
         "@vitest/eslint-plugin": "1.0.1",