rpc: assume private data callbacks are always non-NULL

Since we annotate the APIs are having non-NULL parameters, we can remove
the checks for NULL in the code too.
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

src/rpc/virnetserverclient.c

@@ -466,14 +466,12 @@ virNetServerClientPtr virNetServerClientNew(unsigned long long id,
                                                  now)))
         return NULL;
 
-    if (privNew) {
-        if (!(client->privateData = privNew(client, privOpaque))) {
-            virObjectUnref(client);
-            return NULL;
-        }
-        client->privateDataFreeFunc = privFree;
-        client->privateDataPreExecRestart = privPreExecRestart;
+    if (!(client->privateData = privNew(client, privOpaque))) {
+        virObjectUnref(client);
+        return NULL;
     }
+    client->privateDataFreeFunc = privFree;
+    client->privateDataPreExecRestart = privPreExecRestart;
 
     return client;
 }
@@ -580,18 +578,18 @@ virNetServerClientPtr virNetServerClientNewPostExecRestart(virNetServerPtr srv,
     }
     virObjectUnref(sock);
 
-    if (privNew) {
-        if (!(child = virJSONValueObjectGet(object, "privateData"))) {
-            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                           _("Missing privateData field in JSON state document"));
-            goto error;
-        }
-        if (!(client->privateData = privNew(client, child, privOpaque)))
-            goto error;
-        client->privateDataFreeFunc = privFree;
-        client->privateDataPreExecRestart = privPreExecRestart;
+    if (!(child = virJSONValueObjectGet(object, "privateData"))) {
+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                       _("Missing privateData field in JSON state document"));
+        goto error;
     }
 
+    if (!(client->privateData = privNew(client, child, privOpaque)))
+        goto error;
+
+    client->privateDataFreeFunc = privFree;
+    client->privateDataPreExecRestart = privPreExecRestart;
+
 
     return client;
 
@@ -637,14 +635,12 @@ virJSONValuePtr virNetServerClientPreExecRestart(virNetServerClientPtr client)
         goto error;
     }
 
-    if (client->privateData && client->privateDataPreExecRestart) {
-        if (!(child = client->privateDataPreExecRestart(client, client->privateData)))
-            goto error;
+    if (!(child = client->privateDataPreExecRestart(client, client->privateData)))
+        goto error;
 
-        if (virJSONValueObjectAppend(object, "privateData", child) < 0) {
-            virJSONValueFree(child);
-            goto error;
-        }
+    if (virJSONValueObjectAppend(object, "privateData", child) < 0) {
+        virJSONValueFree(child);
+        goto error;
     }
 
     virObjectUnlock(client);
@@ -989,8 +985,7 @@ void virNetServerClientDispose(void *obj)
     PROBE(RPC_SERVER_CLIENT_DISPOSE,
           "client=%p", client);
 
-    if (client->privateData &&
-        client->privateDataFreeFunc)
+    if (client->privateData)
         client->privateDataFreeFunc(client->privateData);
 
     virObjectUnref(client->identity);