Revert "Implement winio.GetFileStandardInfo"

This reverts commit ef753e6.

Signed-off-by: Kathryn Baldauf <kabaldau@microsoft.com>

fileinfo.go

@@ -43,25 +43,6 @@ func SetFileBasicInfo(f *os.File, bi *FileBasicInfo) error {
 	return nil
 }
 
-// FileStandardInfo contains extended information for the file.
-// FILE_STANDARD_INFO in WinBase.h
-// https://docs.microsoft.com/en-us/windows/win32/api/winbase/ns-winbase-file_standard_info
-type FileStandardInfo struct {
-	AllocationSize, EndOfFile int64
-	NumberOfLinks             uint32
-	DeletePending, Directory  bool
-}
-
-// GetFileStandardInfo retrieves ended information for the file.
-func GetFileStandardInfo(f *os.File) (*FileStandardInfo, error) {
-	si := &FileStandardInfo{}
-	if err := windows.GetFileInformationByHandleEx(windows.Handle(f.Fd()), windows.FileStandardInfo, (*byte)(unsafe.Pointer(si)), uint32(unsafe.Sizeof(*si))); err != nil {
-		return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
-	}
-	runtime.KeepAlive(f)
-	return si, nil
-}
-
 // FileIDInfo contains the volume serial number and file ID for a file. This pair should be
 // unique on a system.
 type FileIDInfo struct {