ext4: kill ext4_kvfree()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --cc fs/ext4/ext4.h
Simple merge

diff --cc fs/ext4/mballoc.c
Simple merge

diff --cc fs/ext4/resize.c
Simple merge

diff --cc fs/ext4/super.c
Simple merge