Fix warning as error for V2

Change-Id: I70cfd971fda629011ba1be84fef15afea196d393
diff --git a/mbtk/mbtk_rild_v2/src/ril_call.c b/mbtk/mbtk_rild_v2/src/ril_call.c
index 6264972..3891143 100755
--- a/mbtk/mbtk_rild_v2/src/ril_call.c
+++ b/mbtk/mbtk_rild_v2/src/ril_call.c
@@ -27,8 +27,8 @@
 static int req_call_start(char *phont_number, int *cme_err)
 {
     ATResponse *response = NULL;
-    int tmp_int;
-    char *tmp_str = NULL;
+//    int tmp_int;
+//    char *tmp_str = NULL;
     char cmd[100] = {0};
     sprintf(cmd, "ATD%s;", phont_number);
     int err = at_send_command(cmd, &response);