minor fixes in validation functions

Author: Fiete Winter

validation/test_all.m

@@ -92,7 +92,7 @@
     disp('Hit Enter to continue');
     pause
     disp('Running "test_plot(1)"');
-    test_plot(1);
+    test_plotting(1);
     disp('Hit Enter to continue');
     pause
     disp('Running "test_secondary_source_positions(1)"');

validation/test_imp_25d.m

@@ -157,7 +157,6 @@
     [IR_gt,~,f_gt] = spectrum_from_signal(ir_gt(:,1),conf);
 
     if modus
-        figure;
         plot_sound_field(p,X,Y,Z,x0,conf);
         title(sprintf('%s %s %s',scenarios{ii,1},src, ...
                       conf.driving_functions),'Interpreter','none');