remove hard coded directory paths from link flags

Currently, we do not see a reason for these, and it causes an issue for
cross compilation.

X-Gentoo-Bug: 361465
X-Gentoo-Bug-URL: http://bugs.gentoo.org/show_bug.cgi?id=361465

mk/lib.mk

@@ -31,8 +31,6 @@ lib${LIB}.a:	${OBJS} ${STATICOBJS}
 
 ${SHLIB_NAME}: ${VERSION_MAP}
 LDFLAGS+=	-Wl,--version-script=${VERSION_MAP}
-# We need to ensure we use libraries in /lib
-LDFLAGS+=	-L/${LIBNAME} -Wl,-rpath=/${LIBNAME}
 
 ${SHLIB_NAME}:	${SOBJS}
 	@${ECHO} building shared library $@