multi.c: Remove static variables _gfortrani_caf_this_image and caf_num_images.

2018-09-02  Thomas Koenig  <tkoenig@gcc.gnu.org>
	* caf/multi.c: Remove static variables _gfortrani_caf_this_image
	and caf_num_images.
	* runtime/environ.c: Add caf_num_images.
	* runtime/compile_options.c: Add _gfortrani_caf_this_image.

From-SVN: r264045
4 files changed