gigasecond: delete superfluous field in test cases
gigasecond: delete superfluous field in test cases

ErikSchierboom/x-common,ErikSchierboom/x-common,kgengler/x-common,rpottsoh/x-common,jmluy/x-common,petertseng/x-common,Vankog/problem-specifications,wobh/x-common,Vankog/problem-specifications,jmluy/x-common,kgengler/x-common,exercism/x-common,petertseng/x-common,exercism/x-common,rpottsoh/x-common,jmluy/x-common