tree 6cc3818cee31d8485933f6420aac0b67df2c5041
parent 1f34504f43a7a409364d4114f180762bf2679e57
author cyy <cyyever@outlook.com> 1546744870 +0800
committer James E. King III <jking@apache.org> 1546866697 -0500

remove unused variables