ext4: remove redundant assignment to node
Pointer 'node' is assigned a value that is never read, node is later overwritten when it re-assigned a different value inside the while-loop. The assignment is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: NColin Ian King <colin.king@canonical.com> Signed-off-by: NTheodore Ts'o <tytso@mit.edu> Reviewed-by: NJan Kara <jack@suse.cz>
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