Update flow evm gateway setup (#1278)

Co-authored-by: ben-weinberg <[email protected]>
Co-authored-by: Idris Olubisi <[email protected]>

src/content/docs/validator/external-chains/flow.mdx

@@ -412,11 +412,10 @@ Further details on Access Node setup can be found in the [Access Node setup](htt
 Similar to the access node, build the EVM gateway binary from the latest release tag. The EVM gateway source is available in the [onflow/flow-go](https://github.com/onflow/flow-evm-gateway) repo.
 ```bash
 git clone https://github.com/onflow/flow-evm-gateway.git
-git checkout <latest release tag mentioned here https://github.com/onflow/flow-evm-gateway/releases>
 cd flow-evm-gateway
 git checkout <latest release tag mentioned here https://github.com/onflow/flow-evm-gateway/releases/latest>
-go build -o evm-gateway cmd/main/main.go
-mv evm-gateway /usr/bin/
+make build
+mv flow-evm-gateway /usr/bin/
 ```
 
 Further details on EVM Gateway building and configuration can be found in the EVM Gateway [repo](https://github.com/onflow/flow-evm-gateway/blob/main/README.md#building).
@@ -480,7 +479,7 @@ After=network-online.target
 
 [Service]
 User=$USER
-ExecStart=/usr/bin/evm-gateway \
+ExecStart=/usr/bin/flow-evm-gateway run \
 --access-node-grpc-host=$ACCESS_NODE_GRPC_HOST \
 --flow-network-id=$FLOW_NETWORK_ID \
 --init-cadence-height=$INIT_CADENCE_HEIGHT \
@@ -490,7 +489,6 @@ ExecStart=/usr/bin/evm-gateway \
 --coa-key=$COA_KEY \
 --rate-limit=9999999 \
 --rpc-host=0.0.0.0 \
---traces-gcp-bucket=devnet51-evm-execution-traces1 \
 --gas-price=$GAS_PRICE
 Restart=always
 RestartSec=3