Revert "Add -S option to tar for efficient sparse file handling"

This reverts commit 733bf5d3ddbfb6dba7c2c0996c4af47a765e4593.

This is needed to fix "no such file" errors `docker build` errors for
devicemapper.

This fixes issue #3449.

Docker-DCO-1.0-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)