use common _data.geo

DiffractionGratings/grating2D.geo

@@ -15,12 +15,7 @@
 // You should have received a copy of the GNU General Public License
 // along with This program. If not, see <https://www.gnu.org/licenses/>.
 
-/** Select the config. (See also grating2D.pro) **/
-Include "grating2D_data_AnisotropicGrating.geo";
-// Include "grating2D_data_LamellarGrating.geo";
-// Include "grating2D_data_PhotonicCrystalSlab.geo";
-// Include "grating2D_data_ResonantGrating.geo";
-// Include "grating2D_data_plasmonics.geo";
+Include "grating2D_data.geo";
 
 paramaille_rods = lambda_min*nm/(paramaille*paramaille_scale_rods);
 lc_rod_out      = lambda_min*nm/(paramaille*paramaille_scale_rod_out);