chore: clean-up `UpdateAssetPositions` and `UpdatePerpetualPositions`… #784

Job	Run time
(Mainnet) Build and Push ECS Services / call-build-and-push-auxo-lambda / (auxo) Build and Push Lambda	4m 5s
(Mainnet) Build and Push ECS Services / call-build-and-push-bazooka-lambda / (bazooka) Build and Push Lambda	4m 49s
(Mainnet) Build and Push ECS Services / call-build-and-push-ecs-service-ender / (ender) Build and Push	3m 58s
(Mainnet) Build and Push ECS Services / call-build-and-push-ecs-service-comlink / (comlink) Build and Push	4m 2s
(Mainnet) Build and Push ECS Services / call-build-and-push-ecs-service-roundtable / (roundtable) Build and Push	3m 55s
(Mainnet) Build and Push ECS Services / call-build-and-push-ecs-service-socks / (socks) Build and Push	3m 45s
(Mainnet) Build and Push ECS Services / call-build-and-push-vulcan / (vulcan) Build and Push	3m 46s
	28m 20s

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