d: Don't generate per-module wrapper for calling DSO constructor/destructor.

d: Don't generate per-module wrapper for calling DSO constructor/destructor.

The static constructor/destructor list only ever has one function to
call in it, so mark the gdc.dso_ctor and gdc.dso_dtor functions as
static ctor/dtor directly instead.

gcc/d/ChangeLog:

	* config-lang.in (gtfiles): Remove modules.cc.
	* modules.cc (struct module_info): Remove GTY marker.
	(static_ctor_list): Remove variable.
	(static_dtor_list): Remove variable.
	(register_moduleinfo): Directly set DECL_STATIC_CONSTRUCTOR on
	dso_ctor, and DECL_STATIC_DESTRUCTOR on dso_dtor.
	(d_finish_compilation): Remove static ctor/dtor handling.

gcc/testsuite/ChangeLog:

	* gdc.dg/gdc270a.d: Removed.
	* gdc.dg/gdc270b.d: Removed.