Remove FileOptions.SequentialScan for write operations

Author: rameel

src/Ramstack.FileSystem.Physical/PhysicalFile.cs

@@ -59,11 +59,7 @@ protected override ValueTask<Stream> OpenWriteCoreAsync(CancellationToken cancel
     {
         EnsureDirectoryExists();
 
-        var options = Path.DirectorySeparatorChar == '\\'
-            ? FileOptions.Asynchronous | FileOptions.SequentialScan
-            : FileOptions.Asynchronous;
-
-        var stream = new FileStream(_physicalPath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None, DefaultBufferSize, options);
+        var stream = new FileStream(_physicalPath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None, DefaultBufferSize, FileOptions.Asynchronous);
 
         // Since FileMode.OpenOrCreate doesn't truncate the file, we manually
         // set the file length to zero to remove any leftover data.
@@ -79,16 +75,12 @@ protected override async ValueTask WriteCoreAsync(Stream stream, bool overwrite,
 
         try
         {
-            var options = Path.DirectorySeparatorChar == '\\'
-                ? FileOptions.Asynchronous | FileOptions.SequentialScan
-                : FileOptions.Asynchronous;
-
             // To overwrite the file, we use FileMode.OpenOrCreate instead of FileMode.Create.
             // This avoids a System.UnauthorizedAccessException: Access to the path is denied,
             // which can occur if the file has the FileAttributes.Hidden attribute.
             var fileMode = overwrite ? FileMode.OpenOrCreate : FileMode.CreateNew;
 
-            await using var fs = new FileStream(_physicalPath, fileMode, FileAccess.Write, FileShare.None, DefaultBufferSize, options);
+            await using var fs = new FileStream(_physicalPath, fileMode, FileAccess.Write, FileShare.None, DefaultBufferSize, FileOptions.Asynchronous);
 
             // Since FileMode.OpenOrCreate doesn't truncate the file, we manually
             // set the file length to zero to remove any leftover data.