chore(api): remove unused session handling (#55240)

api/package.json

@@ -8,7 +8,6 @@
     "@fastify/cookie": "9.3.1",
     "@fastify/csrf-protection": "6.4.1",
     "@fastify/express": "^2.3.0",
-    "@fastify/session": "10.7.0",
     "@fastify/swagger": "8.14.0",
     "@fastify/swagger-ui": "1.10.2",
     "@fastify/type-provider-typebox": "3.6.0",
@@ -16,7 +15,6 @@
     "@prisma/client": "5.5.2",
     "ajv": "8.12.0",
     "ajv-formats": "2.1.1",
-    "connect-mongo": "4.6.0",
     "date-fns": "2.30.0",
     "dotenv": "16.4.5",
     "express-rate-limit": "^6.7.0",
@@ -40,7 +38,7 @@
   "description": "The freeCodeCamp.org open-source codebase and curriculum",
   "devDependencies": {
     "@total-typescript/ts-reset": "0.5.1",
-    "@types/express-session": "1.17.10",
+    "@types/express": "4.17.21",
     "@types/jsonwebtoken": "9.0.5",
     "@types/nodemailer": "6.4.14",
     "@types/supertest": "2.0.16",