libgnt/libgnt

aa6ec6eb8a32
Remove the gtk-doc sections as gi-docgen doesn't need them

Testing Done:
Built the docs locally and verified everything looked okay.

Reviewed at https://reviews.imfreedom.org/r/1017/
option('doc', type : 'boolean', value : true, yield : true,
description : 'build documentation with gtk-doc')
option('introspection', type : 'boolean', value : true, yield : true,
description : 'build introspection data')