dbus: Remove .bbappend, version in current oe-core isn't affected by this CVE

Change-Id: Ic65625a1abbcb48c918915a70959990ee46b1b34
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
lighttpd: Rename .bbappend to match new version from oe-core

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
libpng: Rename .bbappend to match new version from oe-core

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
tiff: Drop .bbappend

* this CVE patch is also applied in current oe-core version

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
gnutls: remove .bbappend

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>