complex.cc (pow): Remove definitions for explicit specializations.

complex.cc (pow): Remove definitions for explicit specializations.

	* src/complex.cc (pow): Remove definitions for explicit
	specializations.
	* libmath/mathconf.h: Remove declarations for c_log, c_logf,
	c_logl.
	* libmath/complex-stub.h: Remove declarations for cpow, cpowf,
	cpowl.
	* libmath/cpow.c: Remove.
	* libmath/cpowf.c: Remove.
	* libmath/cpowl.c: Remove.
	* libmath/Makefile.am (EXTRA_LONG_DOUBLE_yes): Remove c_logl,
	cpowl,
	(EXTRA_DIST): Remove c_log, c_logf, carg, cargf.
	* libmath/Makefile.in: Regenarate.
	* libmath/c_log.c: Remove
	* libmath/c_logf.c: Likewise.
	* libmath/c_logl.c: Likewise.
	* libmath/carg.c: Likewise.
	* libmath/cargf.c: Likewise.
	* libmath/cargl.c: Likewise.
	* include/bits/std_complex.h (pow): Define primary templates.
	(complex<>): Remove friend declarations for pow<>().
	* acinclude.m4: Remove check for c_log, c_logf, c_logl, carg,
	cargf.
	* aclocal.m4: Regenarate.
	* configure: Regenarate.

From-SVN: r38025