librsync: fix requires.
librsync: fix requires.

* remove include directory leftover.

Begasus/haikuports,miqlas/haikuports,nielx/haikuports,nielx/haikuports,koletzky/haikuports,koletzky/haikuports,Begasus/haikuports,Begasus/haikuports,haikuports/haikuports,haikuports/haikuports,koletzky/haikuports,Begasus/haikuports,moochris/haikuports,haikuports/haikuports,moochris/haikuports,moochris/haikuports,miqlas/haikuports,haikuports/haikuports,miqlas/haikuports,haikuports/haikuports,Begasus/haikuports,nielx/haikuports