Revert "Include pkg-config --libs and LDFLAGS in the compiler command-line"
Revert "Include pkg-config --libs and LDFLAGS in the compiler command-line"

This reverts commit e77e06d45d43481f6798ee87d4e16c1e12da668e.

gtk-rs/gir,EPashkin/gir,GuillaumeGomez/gir,EPashkin/gir,gtk-rs/gir,GuillaumeGomez/gir,GuillaumeGomez/gir,gtk-rs/gir