Revamp auth module to support multiple providers linked to a single auth identity (#7521)

packages/modules/providers/auth-google/src/services/google.ts

@@ -130,13 +130,11 @@ export class GoogleAuthService extends AbstractAuthModuleProvider {
     try {
       authIdentity = await authIdentityService.retrieve({
         entity_id,
-        provider: this.provider,
       })
     } catch (error) {
       if (error.type === MedusaError.Types.NOT_FOUND) {
         const createdAuthIdentity = await authIdentityService.create({
           entity_id,
-          provider: this.provider,
           user_metadata: userMetadata,
         })
         authIdentity = createdAuthIdentity