rpc: Don't check the output of virGetUserConfigDirectory()

virGetUserConfigDirectory() *never* *ever* returns NULL, making the
checks for it completely unnecessary.
Signed-off-by: NFabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/rpc/virnetclient.c

@@ -455,12 +455,10 @@ virNetClientPtr virNetClientNewLibSSH2(const char *host,
         knownhosts = g_strdup(knownHostsPath);
     } else {
         confdir = virGetUserConfigDirectory();
-        if (confdir) {
         virBufferAsprintf(&buf, "%s/known_hosts", confdir);
         if (!(knownhosts = virBufferContentAndReset(&buf)))
             goto no_memory;
     }
-    }
 
     if (privkeyPath) {
         privkey = g_strdup(privkeyPath);
@@ -556,7 +554,6 @@ virNetClientPtr virNetClientNewLibssh(const char *host,
         knownhosts = g_strdup(knownHostsPath);
     } else {
         confdir = virGetUserConfigDirectory();
-        if (confdir)
         knownhosts = g_strdup_printf("%s/known_hosts", confdir);
     }