conformtest: Correct search.h expectations for XPG3.

This patch corrects some conformtest expectations for search.h for
XPG3.

Tested for x86_64 and x86.

	* conform/data/search.h-data (insque): Do not expect for [XPG3].
	(remque): Likewise.
	* conform/Makefile (test-xfail-XPG3/search.h/conform): Remove
	variable.