Initial import of remove_dir_all-0.7.0 am: cb14646a36 am: 555a774626 am: 4134a66afc am: 40770fb34e

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/remove_dir_all/+/1876693

Change-Id: I79f32c510aa59b270e1ae31a4c0744b3c89212b6