* cpphash.h (_cpp_set_trad_context): Remove.
	* cpplib.c (prepare_directive_trad): Do nothing for #define.
	(cpp_push_buffer, _cpp_pop_buffer): Don't call _cpp_set_trad_context.
	* cpptrad.c: Update comments.
	(_cpp_read_logical_line_trad): Let scan_logical_line handle
	updating the current context.
	(scan_logical_line): Update the current context.
	(_cpp_create_trad_definition): Similarly.
	(_cpp_set_trad_context): Remove.

From-SVN: r55022