refactor: simplify code a little bit

Author: andreynering

providertests/builders_test.go

@@ -28,33 +28,21 @@ func builderOpenaiGpt4o(r *recorder.Recorder) (ai.LanguageModel, error) {
 		openai.WithAPIKey(os.Getenv("OPENAI_API_KEY")),
 		openai.WithHTTPClient(&http.Client{Transport: r}),
 	)
-	model, err := provider.LanguageModel("gpt-4o")
-	if err != nil {
-		return nil, err
-	}
-	return model, nil
+	return provider.LanguageModel("gpt-4o")
 }
 
 func builderOpenaiGpt4oMini(r *recorder.Recorder) (ai.LanguageModel, error) {
 	provider := openai.New(
 		openai.WithAPIKey(os.Getenv("OPENAI_API_KEY")),
 		openai.WithHTTPClient(&http.Client{Transport: r}),
 	)
-	model, err := provider.LanguageModel("gpt-4o-mini")
-	if err != nil {
-		return nil, err
-	}
-	return model, nil
+	return provider.LanguageModel("gpt-4o-mini")
 }
 
 func builderAnthropicClaudeSonnet4(r *recorder.Recorder) (ai.LanguageModel, error) {
 	provider := anthropic.New(
 		anthropic.WithAPIKey(os.Getenv("ANTHROPIC_API_KEY")),
 		anthropic.WithHTTPClient(&http.Client{Transport: r}),
 	)
-	model, err := provider.LanguageModel("claude-sonnet-4-20250514")
-	if err != nil {
-		return nil, err
-	}
-	return model, nil
+	return provider.LanguageModel("claude-sonnet-4-20250514")
 }