Feat(auth): Remove auth provider entity (#6314)

**What**
- remove auth provider entity

**Why**
- The auth provider entity was not really used anywhere

**How**
- Keeping loader behavior as is but removing the 

Co-authored-by: Sebastian Rindom <7554214+srindom@users.noreply.github.com>

packages/customer/integration-tests/__tests__/services/customer-module/index.spec.ts

@@ -1,8 +1,8 @@
 import { ICustomerModuleService } from "@medusajs/types"
 import { MikroOrmWrapper } from "../../../utils"
 import { Modules } from "@medusajs/modules-sdk"
-import { initModules } from "medusa-test-utils"
 import { getInitModuleConfig } from "../../../utils/get-init-module-config"
+import { initModules } from "medusa-test-utils"
 
 jest.setTimeout(30000)