removing tnt_bench

CMakeLists.txt

client/tnt_bench/CMakeLists.txt

client/tnt_bench/tnt_bench.c

client/tnt_bench/tnt_bench.h

client/tnt_bench/tnt_bench_arg.c

client/tnt_bench/tnt_bench_arg.h

client/tnt_bench/tnt_bench_cb.c

client/tnt_bench/tnt_bench_cb.h

client/tnt_bench/tnt_bench_func.c

client/tnt_bench/tnt_bench_func.h

client/tnt_bench/tnt_bench_main.c

client/tnt_bench/tnt_bench_opt.c

client/tnt_bench/tnt_bench_opt.h

client/tnt_bench/tnt_bench_plot.c

client/tnt_bench/tnt_bench_plot.h

client/tnt_bench/tnt_bench_redis.c

client/tnt_bench/tnt_bench_redis.h

client/tnt_bench/tnt_bench_stat.c

client/tnt_bench/tnt_bench_stat.h

client/tnt_bench/tnt_bench_test.c