delete Makefile. use cmake

wangzhengquan

2021-01-19 3baa1ff0ea9c24f4ecf0f818f2c5909d6d918f5e

 test/futex_test.cpp

@@ -137,7 +137,6 @@
  }

  /* State: available */

  fwait(futex1);
  printf("(%ld) 进入互斥区\n", (long) getpid());
  sleep(5);