kvm-tools: fix wrong "./lkvm list -i"

because the program name is changed, "./lkvm list -i" can't work now.
This fix just remove the test:
1) this test is not reliable.
2) the target process can respond for "get_pid()", it must be
   kvm-tool. (at least it is more reliable)

Acked-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

builtin-list.c

@@ -11,8 +11,6 @@
 #include <signal.h>
 #include <fcntl.h>
 
-#define PROCESS_NAME "kvm"
-
 struct pid_cmd {
 	u32 type;
 	u32 len;
@@ -71,8 +69,6 @@ static int print_guest(const char *name, int sock)
 		goto cleanup;
 	if (fscanf(fd, "%*u (%as)", &comm) == 0)
 		goto cleanup;
-	if (strncmp(comm, PROCESS_NAME, strlen(PROCESS_NAME)))
-		goto cleanup;
 
 	printf("%5d %-20s %s\n", pid, name, KVM_INSTANCE_RUNNING);