Simplifying error case.
Simplifying error case.

Removing lines which are not necessary for the error to happen.

erdavila/M-Tree,erdavila/M-Tree,tranvanluan2/M-Tree,tranvanluan2/M-Tree,erdavila/M-Tree,tranvanluan2/M-Tree,erdavila/M-Tree,erdavila/M-Tree,erdavila/M-Tree,tranvanluan2/M-Tree,tranvanluan2/M-Tree