chore: clean-up `UpdateAssetPositions` and `UpdatePerpetualPositions`… #1052

Job	Run time
(Public Testnet) Build and Push ECS Services / call-build-and-push-ecs-service-comlink / (comlink) Build and Push	4m 0s
(Public Testnet) Build and Push ECS Services / call-build-and-push-ecs-service-ender / (ender) Build and Push	3m 58s
(Public Testnet) Build and Push ECS Services / call-build-and-push-auxo-lambda / (auxo) Build and Push Lambda	4m 8s
(Public Testnet) Build and Push ECS Services / call-build-and-push-bazooka-lambda / (bazooka) Build and Push Lambda	4m 45s
(Public Testnet) Build and Push ECS Services / call-build-and-push-ecs-service-roundtable / (roundtable) Build and Push	3m 47s
(Public Testnet) Build and Push ECS Services / call-build-and-push-ecs-service-socks / (socks) Build and Push	3m 48s
(Public Testnet) Build and Push ECS Services / call-build-and-push-vulcan / (vulcan) Build and Push	4m 1s
	28m 27s

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