Stop preemptively generating screenshots for video stories

ts/sql/Client.ts

@@ -191,6 +191,30 @@ export function _cleanMessageData(data: MessageType): MessageType {
         return omit(attachment, ['data']);
       }
 
+      if (attachment.screenshotData) {
+        assertDev(
+          false,
+          `_cleanMessageData/${logId}: Attachment ${index} had screenshotData field; deleting`
+        );
+        return omit(attachment, ['screenshotData']);
+      }
+
+      if (attachment.screenshot?.data) {
+        assertDev(
+          false,
+          `_cleanMessageData/${logId}: Attachment ${index} had screenshot.data field; deleting`
+        );
+        return omit(attachment, ['screenshot.data']);
+      }
+
+      if (attachment.thumbnail?.data) {
+        assertDev(
+          false,
+          `_cleanMessageData/${logId}: Attachment ${index} had thumbnail.data field; deleting`
+        );
+        return omit(attachment, ['thumbnail.data']);
+      }
+
       return attachment;
     });
   }

ts/sql/Server.ts

@@ -1918,8 +1918,14 @@ function saveMessageSync(
 
   if (attachments) {
     strictAssert(
-      attachments.every(attachment => !attachment.data),
-      'Attempting to save a hydrated message'
+      attachments.every(
+        attachment =>
+          !attachment.data &&
+          !attachment.screenshotData &&
+          !attachment.screenshot?.data &&
+          !attachment.thumbnail?.data
+      ),
+      'Attempting to save a message with binary attachment data'
     );
   }