PR gcov-profile/23332
	* profile.c (instrument_values): Do not handle
	HIST_TYPE_CONST_DELTA.
	* tree-profile.c (gimple_gen_const_delta_profiler):
	Remove.
	* value-prof.c (dump_histogram_value): Do not handle
	HIST_TYPE_CONST_DELTA.
	(stream_in_histogram_value): Likewise.
	(gimple_find_values_to_profile): Likewise.
	* value-prof.h (enum hist_type): Likewise.

From-SVN: r240492