[JS] model deprecation warning is displayed regardless of whether the model is used or not

[pavelgj]

When I install googleAI plugin I see this warning:

Warning: Model 'googleai/gemini-pro-vision' is deprecated and may be removed in a future release.

The warning should only be displayed if I attempt to use the model.

[jpv123]

Hi guys, having the same issue. Using gemini 1.5pro model with genkit