icedtea-web broken after removal of libxul

[Walter Schwarzenfeld]

After remove of libxul, icedtea-web does not configure

configure: error: Package requirements (mozilla-plugin) were not met:
Package 'mozilla-plugin', required by 'virtual:world', not found

After a (weak) try with make MOZILLA_LIBS=/usr/local/lib/libxul 
MOZILLA_CFLAGS=-I//usr/local/include/libxul:

It fails missing npapi.h or other headers.

Mark it as broken, remove it or revert the remove of libxul.

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229242