feat(medusa): Modules initializer (#3352)

packages/medusa/src/interfaces/services/inventory.ts

@@ -1,4 +1,3 @@
-import { EntityManager } from "typeorm"
 import { FindConfig } from "../../types/common"
 
 import {
@@ -16,8 +15,6 @@ import {
 } from "../../types/inventory"
 
 export interface IInventoryService {
-  withTransaction(transactionManager?: EntityManager): this
-
   listInventoryItems(
     selector: FilterableInventoryItemProps,
     config?: FindConfig<InventoryItemDTO>