ext4_utils: delete make_ext4fs relavant code and script

make_ext4fs has been replaced with mke2fs.

Bug: 64395169
Change-Id: Iad3a8346ca211e4d5a5ab7046c2bdd199292a867
Merged-In: Iad3a8346ca211e4d5a5ab7046c2bdd199292a867
(cherry picked from commit 7c2d21b4c28360f5e058e1632d87028f6b43e90a)
Test: m native-host-cross with clang (added during cherry-pick to
get past repo upload hook).
13 files changed