99devinstall: drop hardcoded libdir

Let the ebuild autopopulate this.

TEST=`emerge-x32-generic dev-install` produces a proper LD_LIBRARY_PATH

Change-Id: I13197a8999c526fdc1b7da66349d81c428f6928e
Reviewed-on: https://gerrit.chromium.org/gerrit/45450
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Chris Sosa <sosa@chromium.org>
diff --git a/dev-install/99devinstall b/dev-install/99devinstall
index 3fda9c4..520096b 100644
--- a/dev-install/99devinstall
+++ b/dev-install/99devinstall
@@ -1,6 +1,5 @@
 # Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
-# TODO(sosa): use $(get_libdir) via ebuild.