This commit removes all features and UI elements related to signature handling in the `EnvelopeReceiverPage_DxReportViewer.razor` file.
Key changes include:
- Removed signature creation (drawing, typing, uploading) and associated UI components like the signature popup and action bar.
- Removed annotation handling logic, including toggling checkboxes and applying signatures to annotations.
- Removed PDF export functionality for signed documents.
- Deleted methods and properties related to signature handling, such as `AddSignature`, `OnInitializedAsync`, and `SignaturePopupVisible`.
- Removed `@inject` services and JavaScript interop calls related to signature handling.
- Simplified the `DxReportViewer` usage to only display the report without overlays or interactions.
- Removed envelope metadata display and logout functionality.
The page now focuses solely on displaying reports without any signature-related features.