[Backport 5.3] Revert "Return uninitialized gateway if client is nil" (#60478)

Revert "Return uninitialized gateway if client is nil" (#60475)

This reverts commit bc599bb.

(cherry picked from commit 5cc3f6e)

Co-authored-by: Cezary Bartoszuk <[email protected]>

Author: sourcegraph-release-bot

cmd/frontend/internal/guardrails/init.go

@@ -83,9 +83,6 @@ func (e *enterpriseInitialization) Service() attribution.Service {
 	if e.endpoint == "" || e.token == "" {
 		return attribution.Uninitialized{}
 	}
-	if e.client == nil {
-		return attribution.Uninitialized{}
-	}
 	return attribution.NewGatewayProxy(e.observationCtx, e.client)
 }