util: 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/util/virhostdev.c

@@ -182,8 +182,7 @@ virHostdevManagerNew(void)
         g_autofree char *rundir = NULL;
         mode_t old_umask;
 
-        if (!(rundir = virGetUserRuntimeDirectory()))
-            return NULL;
+        rundir = virGetUserRuntimeDirectory();
 
         hostdevMgr->stateDir = g_strdup_printf("%s/hostdevmgr", rundir);
 

src/util/virpidfile.c

@@ -488,8 +488,7 @@ virPidFileConstructPath(bool privileged,
         }
         *pidfile = g_strdup_printf("%s/%s.pid", runstatedir, progname);
     } else {
-        if (!(rundir = virGetUserRuntimeDirectory()))
-            return -1;
+        rundir = virGetUserRuntimeDirectory();
 
         if (virFileMakePathWithMode(rundir, 0700) < 0) {
             virReportSystemError(errno,