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/auth/integration-tests/__fixtures__/auth-provider/index.ts

@@ -1,41 +0,0 @@
-import { SqlEntityManager } from "@mikro-orm/postgresql"
-import { AuthProvider } from "@models"
-
-export async function createAuthProviders(
-  manager: SqlEntityManager,
-  providerData: any[] = [
-    {
-      provider: "manual",
-      name: "manual",
-      is_active: true,
-    },
-    {
-      provider: "disabled",
-      name: "disabled",
-    },
-    {
-      provider: "store",
-      name: "store",
-      domain: "store",
-      is_active: true,
-    },
-    {
-      provider: "admin",
-      name: "admin",
-      domain: "admin",
-      is_active: true,
-    },
-  ]
-): Promise<AuthProvider[]> {
-  const authProviders: AuthProvider[] = []
-
-  for (const provider of providerData) {
-    const authProvider = manager.create(AuthProvider, provider)
-
-    authProviders.push(authProvider)
-  }
-
-  await manager.persistAndFlush(authProviders)
-
-  return authProviders
-}