Revert "FROMLIST: BACKPORT: maple_tree: Refine mas_preallocate() node calculations"

This reverts commit 133fbad5.

Replacing the patch with a newer version improving performance:
https://lore.kernel.org/all/20230612203953.2093911-15-Liam.Howlett@oracle.com/



Bug: 274059236
Change-Id: I0a924698c908e00d2addb9b7c90e573e72c8ba59
Signed-off-by: Suren Baghdasaryan <surenb@google.com>