ext4: save unnecessary indentation in ext4_ext_create_new_leaf()

Save an indentation level in ext4_ext_create_new_leaf() by removing
unnecessary 'else'. Besides, the variable 'ee_block' is declared to
avoid line breaks. No functional changes.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20240822023545.1994557-26-libaokun@huaweicloud.com


Signed-off-by: Theodore Ts'o <tytso@mit.edu>