clean unnecessary code: don't check g_strdup arg for NULL

Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

util/uri.c

@@ -2162,7 +2162,7 @@ query_params_append (struct QueryParams *ps,
     }
 
     ps->p[ps->n].name = g_strdup(name);
-    ps->p[ps->n].value = value ? g_strdup(value) : NULL;
+    ps->p[ps->n].value = g_strdup(value);
     ps->p[ps->n].ignore = 0;
     ps->n++;
 

vl.c

@@ -1215,7 +1215,7 @@ void add_boot_device_path(int32_t bootindex, DeviceState *dev,
 
     node = g_malloc0(sizeof(FWBootEntry));
     node->bootindex = bootindex;
-    node->suffix = suffix ? g_strdup(suffix) : NULL;
+    node->suffix = g_strdup(suffix);
     node->dev = dev;
 
     QTAILQ_FOREACH(i, &fw_boot_order, link) {