nilfs2: remove nilfs_palloc_block_get_entry()

All calls to nilfs_palloc_block_get_entry() are now gone, so remove it.

Link: https://lkml.kernel.org/r/20241024092602.13395-8-konishi.ryusuke@gmail.com


Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>