fix: invalid subgraph api key value

Author: dnechay

packages/apps/reputation-oracle/server/.env.example

@@ -49,9 +49,6 @@ WEB3_ENV=testnet
 WEB3_PRIVATE_KEY=replace_me
 RPC_URL_POLYGON_AMOY=https://rpc-amoy.polygon.technology
 
-# Subgraph
-SUBGRAPH_API_KEY=replace_me_if_needed
-
 # Encryption
 PGP_ENCRYPT=true
 PGP_PRIVATE_KEY="-----BEGIN PGP PRIVATE KEY BLOCK-----