fix tests

Author: jonastheis

rollup/conf/config.json

@@ -40,7 +40,6 @@
       "rollup_contract_address": "0x0000000000000000000000000000000000000000",
       "sender_config": {
         "endpoint": "https://rpc.ankr.com/eth",
-        "write_endpoints": [],
         "escalate_blocks": 1,
         "confirmations": "0x0",
         "escalate_multiple_num": 2,