[PATCH] sample/acrn: fix uninitialized_var.cocci warning

[hexingwei001@208suo.com]

Fix following coccicheck warning:

samples/acrn/vm-sample.c:53:6-7: WARNING this kind of initialization is 
deprecated.
samples/acrn/vm-sample.c:54:6-7: WARNING this kind of initialization is 
deprecated.
samples/acrn/vm-sample.c:37:5-6: WARNING this kind of initialization is 
deprecated.

Signed-off-by: Xingwei He <hexingwei001@208suo.com>
---
  samples/acrn/vm-sample.c | 3 ---
  1 file changed, 3 deletions(-)

diff --git a/samples/acrn/vm-sample.c b/samples/acrn/vm-sample.c
index 704402c64ea3..e60b2d0b7e20 100644
--- a/samples/acrn/vm-sample.c
+++ b/samples/acrn/vm-sample.c
@@ -34,7 +34,6 @@ int is_running = 1;

  void vm_exit(int sig)
  {
-    sig = sig;

      is_running = 0;
      ioctl(hsm_fd, ACRN_IOCTL_PAUSE_VM, vmid);
@@ -50,8 +49,6 @@ int main(int argc, char **argv)
      struct acrn_io_request *io_req;
      struct acrn_ioreq_notify __attribute__((aligned(8))) notify;

-    argc = argc;
-    argv = argv;

      ret = posix_memalign(&guest_memory, 4096, GUEST_MEMORY_SIZE);
      if (ret < 0) {