Comment reformatting and removal of gcc/m2/lang-options.h

Comment reformatting and removal of gcc/m2/lang-options.h

2022-05-19   Gaius Mulley   <gaius.mulley@southwales.ac.uk>

gcc/m2/ChangeLog:

	* gm2-gcc/m2builtins.cc: Corrected comments (specifically
	those referring to .c files).
	* gm2-gcc/m2convert.cc: Corrected comments (specifically
	those referring to .c files).
	* gm2-gcc/m2expr.cc: Corrected comments (specifically
	those referring to .c files).
	* gm2-gcc/m2statement.cc: Corrected comments (specifically
	those referring to .c files).
	* gm2-gcc/m2treelib.cc: Corrected comments (specifically
	those referring to .c files).
	* gm2-gcc/m2type.cc: Corrected comments (specifically
	those referring to .c files).
	* gm2-gcc/rtegraph.cc: Corrected comments (specifically
	those referring to .c files).
	* gm2-lang.cc: Corrected comments (specifically
	those referring to .c files).
	* plugin/m2rte.cc: Reformatted comments and removal of
	test comment.
	* lang-options.h: (Removed).

Signed-off-by: Gaius Mulley <gaius.mulley@southwales.ac.uk>