lxc: Remove unnecessary comment

Commit 66e2adb2 moved the code and the coverity comment which now
was useless since the context was in lxcContainerSetupPivotRoot.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>
Reviewed-by: NDaniel P. Berrangé <berrange@redhat.com>

src/lxc/lxc_container.c

@@ -1658,11 +1658,6 @@ static int lxcContainerUnmountForSharedRoot(const char *stateDir,
     /* Some versions of Linux kernel don't let you overmount
      * the selinux filesystem, so make sure we kill it first
      */
-    /* Filed coverity bug for false positive 'USE_AFTER_FREE' due to swap
-     * of root->src with root->dst and the VIR_FREE(root->src) prior to the
-     * reset of root->src in lxcContainerPrepareRoot()
-     */
-    /* coverity[deref_arg] */
     if (lxcContainerUnmountSubtree(SELINUX_MOUNT, false) < 0)
         goto cleanup;
 #endif