Removed freetype-2.3.9-libdir-la.patch

Now that freetype.mk has been converted to autotools infrastructure, the patch
is no longer needed. Autotools will automatically apply the needed patch.

Signed-off-by: Martin Banky <Martin.Banky@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>