xmlroff: enable x86_64.
xmlroff: enable x86_64.

* remove libtool file.
* move pkgconfig file to devel package.
* fix provide compat.

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