Removed unused return values

[EPuncker]

Pull Request Prelude

• I have followed proper The Forgotten Server code styling.
• I have read and understood the contribution guidelines before making this PR.
• I am aware that this PR may be closed if the above-mentioned criteria are not fulfilled.

Changes Proposed

Removed unused return values, probably leftovers from 0.x era

Issues addressed:

[ranisalt]

probably leftovers from 0.x era

More likely leftovers from older game protocols

[Zbizu]

When was item not possible to conjure? And in which situation was it necessary to split your spears?

[EPuncker]

And in which situation was it necessary to split your spears?

enchanted spear spell maybe

When was item not possible to conjure?

idk, most likely to be custom stuff