refactor(amazonq): remove unnecessary code (#6665)

## Problem
Some code was accidentally checked in to src.gen

## Solution
Remove these unnecessary code

---

- Treat all work as PUBLIC. Private `feature/x` branches will not be
squash-merged at release time.
- Your code changes must meet the guidelines in
[CONTRIBUTING.md](https://github.com/aws/aws-toolkit-vscode/blob/master/CONTRIBUTING.md#guidelines).
- License: I confirm that my contribution is made under the terms of the
Apache 2.0 license.

src.gen/@amzn/codewhisperer-streaming/src/models/models_0.ts

@@ -1019,8 +1019,6 @@ export interface RelevantTextDocument {
    * @public
    */
   documentSymbols?: (DocumentSymbol)[] | undefined;
-  startLine?: number;
-  endLine?: number;
 }
 
 /**