freetype: remove empty line at end of hash file

Fixes the following check-package warning:

./package/freetype/freetype.hash:10: empty line at end of file

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

package/freetype/freetype.hash

@@ -7,4 +7,3 @@ sha256	e5435f02e02d2b87bb8e4efdcaa14b1f78c9cf3ab1ed80f94b6382fb6acc7d78	freetype
 sha256	fd056de4196903a676208ef58cfddafc7d583d1f28fa2e44c309cf84a59e62fb	docs/LICENSE.TXT
 sha256	4a9a548027a2c1d37788519dea833294c9c81f1ebc280e817f41f50d0c642d78	docs/FTL.TXT
 sha256	c4120c6752c910c299e3bd9cb3a46ff262c268303ca2069b61f92f10a5656c18	docs/GPLv2.TXT
-