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

[hexingwei001]

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@xxxxxxxxxx>
---
 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) {