feat: added support for gemini native converterswq

Author: TejasGhatte

core/providers/gemini/chat.go

@@ -107,13 +107,6 @@ func (request *GeminiGenerationRequest) ToBifrostEmbeddingRequest() *schemas.Bif
 
 	provider, model := schemas.ParseModelString(request.Model, schemas.Gemini)
 
-	if provider == schemas.Vertex && !request.IsEmbedding {
-		// Add google/ prefix if not already present and model is not a custom fine-tuned model
-		if !schemas.IsAllDigitsASCII(model) && !strings.HasPrefix(model, "google/") {
-			model = "google/" + model
-		}
-	}
-
 	// Create the embedding request
 	bifrostReq := &schemas.BifrostEmbeddingRequest{
 		Provider:  provider,