Social Security is sound and does not impact the budget or the deficit. There will be no shortage of funds if the income limit is removed. All income should be used to asses the contributions to Social Security.
Why is this important?
Social Security does not affect the budget and only is part of the debt because past Congress used the money to pay for bills they did not raise taxes enough to pay for before. It has always paid its own way. There is no reason for a limit on contributions.