fix: remove unused return values. (OZ N-10)

[MoonBoi9001]

Motivation:

• This PR addresses the following N-10 OZ audit issue, applying the recommended fixes.

Title:

N-10 Redundant Return Values

Details:

Throughout the codebase, multiple instances of functions with unused return values were identified:

The _closeAllocation function of the AllocationManager contract
The presentPOI, clearPendingRewards, close, and snapshotRewards functions of the Allocation library
Consider removing these unused return values to simplify the code and improve readability, ensuring that functions only return values that are actively utilized by their callers.

Key changes

• Removed the unused return value for the the _closeAllocation function of the AllocationManager contract.
• Removed the unused return value for the the presentPOI, clearPendingRewards, close, and snapshotRewards functions function of the Allocation library.

[openzeppelin-code]

fix: remove unused return values. (OZ N-10)

Generated at commit: bd62e959dadf8b011b7d3cf766d2cf1103b50120

🚨 Report Summary

	Severity Level	Results
Contracts	Critical High Medium Low Note Total	2 4 0 15 41 62
Dependencies	Critical High Medium Low Note Total	0 0 0 0 0 0

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For more details view the full report in OpenZeppelin Code Inspector

[tmigone]

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