excessive "unused field" comments

namespace go thrift2555

struct Element3 {
	1	: i32 plus_1
	10	: i32 plus_10
}

service FooBar {
	Element3 Convert(3: Element3 three)
}

type Element3 struct {
	Plus_1 int32 `thrift:"plus_1,1"`
	// unused field # 2
	// unused field # 3
	// unused field # 4
	// unused field # 5
	// unused field # 6
	// unused field # 7
	// unused field # 8
	// unused field # 9
	Plus_10 int32 `thrift:"plus_10,10"`
}