* fileread.cc (Input_file::open): Remove options parameter.

	* fileread.cc (Input_file::open): Remove options parameter.
	Change all callers.
	(Input_file::open_binary): Likewise.
	* script.cc (read_input_script): Likewise.
	* readsyms.h (class Read_symbols): Remove options_ field.  Remove
	options parameter from constructor.  Change all callers.
	(class Read_script): Likewise.
	* fileread.h (class Input_file): Update declarations.
	* script.h (read_input_script): Update declaration.