ci: remove complex-mev from nightly ci (#271)

the underlying image is `latest` and fails; last night it failed as it
couldn't connect to postgres. removing it as its flaky

.circleci/config.yml

@@ -170,13 +170,6 @@ jobs:
       - checkout
       - run: kurtosis run ${PWD} "$(cat ./.circleci/tests/mev.json)"
 
-  complex_mev:
-    executor: ubuntu_vm
-    steps:
-      - <<: *setup_kurtosis
-      - checkout
-      - run: kurtosis run ${PWD} "$(cat ./.circleci/tests/complex-mev.json)"
-
   nimbus_mev:
     executor: ubuntu_vm
     steps:
@@ -202,7 +195,6 @@ workflows:
       - reth-all
       - teku-all
       - nimbus_mev
-      - complex_mev
 
   build:
     when: << pipeline.parameters.should-enable-build-workflow >>

.circleci/tests/complex-mev.json

-{
-    "participants": [
-      {
-        "el_client_type": "geth",
-        "el_client_image": "ethereum/client-go:latest",
-        "el_client_log_level": "",
-        "el_extra_params": [],
-        "cl_client_type": "lighthouse",
-        "cl_client_image": "",
-        "cl_client_log_level": "",
-        "beacon_extra_params": [],
-        "validator_extra_params": [],
-        "builder_network_params": null,
-        "count": 1
-      }
-    ],
-    "network_params": {
-      "seconds_per_slot": 12,
-      "slots_per_epoch": 32,
-      "capella_fork_epoch": 1
-    },
-    "mev_type": "full",
-    "mev_params": {
-      "mev_relay_image": "public.ecr.aws/t1d5h1w5/pepc-boost-relay:latest",
-      "mev_builder_image": "public.ecr.aws/t1d5h1w5/pepc-boost-builder:latest",
-      "mev_flood_seconds_per_bundle": 7,
-      "launch_custom_flood": true
-    }
-  }
-  
\ No newline at end of file