[HBAR Rate Limit Redesign] Replace usages of HbarLimit with the new HbarLimitService and delete it

[victor-yanev]

Update the codebase to replace all instances and usages of the HbarLimit with the newly implemented HbarLimitService. The HbarLimitService provides improved functionality and better encapsulates the logic for handling rate limits on HBAR transactions.

Once all references to HbarLimit have been replaced, the old HbarLimit class or module should be safely deleted from the project to prevent redundancy and ensure that only the new service is utilized moving forward.