typings: remove no longer valid FixedSizeBlobCopyJob type

PR-URL: #58305
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>

Author: dario-piotrowicz

typings/internalBinding/blob.d.ts

@@ -2,17 +2,10 @@ declare namespace InternalBlobBinding {
   interface BlobHandle {
     slice(start: number, end: number): BlobHandle;
   }
-
-  class FixedSizeBlobCopyJob {
-    constructor(handle: BlobHandle);
-    run(): ArrayBuffer | undefined;
-    ondone: (err: unknown, res?: ArrayBuffer) => void;
-  }
 }
 
 export interface BlobBinding {
   createBlob(sources: Array<Uint8Array | InternalBlobBinding.BlobHandle>, length: number): InternalBlobBinding.BlobHandle;
-  FixedSizeBlobCopyJob: typeof InternalBlobBinding.FixedSizeBlobCopyJob;
   getDataObject(id: string): [handle: InternalBlobBinding.BlobHandle | undefined, length: number, type: string] | undefined;
   storeDataObject(id: string, handle: InternalBlobBinding.BlobHandle, size: number, type: string): void;
 }