Don't display M421 information for UBL at startup

It takes too long to display the mesh data for large mesh's at startup.   We should consider ways to speed this up.
Perhaps it makes sense to display an entire row of the mesh instead of just one mesh point?

Marlin/src/module/configuration_store.cpp

           SERIAL_ECHOLNPGM_P(port, " meshes.\n");
         }
 
-        ubl.report_current_mesh(PORTVAR_SOLO);
-
+//      ubl.report_current_mesh(PORTVAR_SOLO);   // This is too verbose for large mesh's.   A better (more terse)
+                                                 // solution needs to be found.
       #elif ENABLED(AUTO_BED_LEVELING_BILINEAR)
 
         if (leveling_is_valid()) {