remove id for now, use string instead of base64

src/operations/video.gql

@@ -214,14 +214,13 @@ query GetHeaderInfoByVideoId($videoId: Int!) {
   }
 }
 
-mutation FindPrerecordTableLayout($b64Image: Base64!, $videoId: Int!) {
+mutation FindPrerecordTableLayout($b64Image: String!, $videoId: Int!) {
   findPrerecordTableLayout(b64Image: $b64Image, videoId: $videoId) {
     ...HomographyInfo
   }
 }
 
 fragment HomographyInfo on HomographyInfoGQL {
-  id
   frameIndex
   crop {
     left