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

virGetUserRuntimeDirectory() *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/virnetsocket.c

@@ -684,8 +684,7 @@ int virNetSocketNewConnectUNIX(const char *path,
             goto cleanup;
         }
 
-        if (!(rundir = virGetUserRuntimeDirectory()))
-            goto cleanup;
+        rundir = virGetUserRuntimeDirectory();
 
         if (virFileMakePathWithMode(rundir, 0700) < 0) {
             virReportSystemError(errno,