ext4: delete "set but not used" variables
Signed-off-by: Jon Ernst <jonernst07@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
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Signed-off-by: Jon Ernst <jonernst07@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>