Revert "OpenACC profiling-interface fixes for asynchronous operations"

Revert "OpenACC profiling-interface fixes for asynchronous operations"

There is occasional execution failure; these changes need to be reviewed.

This reverts og12 commit 719f93c8618a134f90b5b661ab70c918d659ad05.

	libgomp/
	* oacc-host.c: Revert
	"OpenACC profiling-interface fixes for asynchronous operations"
	changes.
	* oacc-mem.c: Likewise.
	* oacc-parallel.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_prof-init-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/acc_prof-parallel-1.c:
	Likewise.