chore: duplicate doc wording

Author: russellwheatley

packages/ai/lib/types/requests.ts

@@ -215,8 +215,7 @@ export interface GoogleSearchTool {
   /**
    * Specifies the Google Search configuration.
    * Currently, this is an empty object, but it's reserved for future configuration options.
-   * Specifies the Google Search configuration. Currently, this is an empty object, but it's
-   * reserved for future configuration options.
+   * Specifies the Google Search configuration.
    *
    * When using this feature, you are required to comply with the "Grounding with Google Search"
    * usage requirements for your chosen API provider: {@link https://ai.google.dev/gemini-api/terms#grounding-with-google-search | Gemini Developer API}