fix: remove timestamp from the read receipt content type

packages/content-type-read-receipt/src/ReadReceipt.ts

@@ -8,36 +8,25 @@ export const ContentTypeReadReceipt = new ContentTypeId({
   versionMinor: 0,
 });
 
-export type ReadReceipt = {
-  /**
-   * The timestamp the read receipt was sent, in ISO 8601 format
-   */
-  timestamp: string;
-};
-
-export type ReadReceiptParameters = Pick<ReadReceipt, "timestamp">;
+export type ReadReceipt = object;
 
 export class ReadReceiptCodec implements ContentCodec<ReadReceipt> {
   get contentType(): ContentTypeId {
     return ContentTypeReadReceipt;
   }
 
-  encode(content: ReadReceipt): EncodedContent<ReadReceiptParameters> {
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  encode(content: ReadReceipt): EncodedContent {
     return {
       type: ContentTypeReadReceipt,
-      parameters: {
-        timestamp: content.timestamp,
-      },
+      parameters: {},
       content: new Uint8Array(),
     };
   }
 
-  decode(content: EncodedContent<ReadReceiptParameters>): ReadReceipt {
-    const { timestamp } = content.parameters;
-
-    return {
-      timestamp,
-    };
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  decode(content: EncodedContent): ReadReceipt {
+    return {};
   }
 
   // eslint-disable-next-line @typescript-eslint/no-unused-vars