fix: remove debug console.log from production code

Removed leftover debug console.log statement in ERC1155 signature
generation endpoint that was leaking signed payload data to logs.

Impact:
- Eliminates potential data leakage in production logs
- Removes performance overhead of console logging
- Improves production log cleanliness
- Better security posture

Author: anuragchvn-blip

src/server/routes/contract/extensions/erc1155/read/signature-generate.ts

@@ -258,8 +258,6 @@ export async function erc1155SignatureGenerate(fastify: FastifyInstance) {
           )
         : await contract.erc1155.signature.generate(payload);
 
-      console.log("signedPayload", signedPayload);
-
       reply.status(StatusCodes.OK).send({
         result: {
           ...signedPayload,