refactor: remove private includes from server.c (#752)

Signed-off-by: William Henderson <william.henderson@nutanix.com>
Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>

samples/server.c

diff --git a/samples/server.c b/samples/server.c
index 37c5d78..11f4074 100644
--- a/samples/server.c
+++ b/samples/server.c
@@ -45,9 +45,7 @@
 
 #include "common.h"
 #include "libvfio-user.h"
-#include "private.h"
 #include "rte_hash_crc.h"
-#include "tran_sock.h"
 
 struct dma_regions {
     struct iovec iova;