Don't re-apply Z_RAISE_BETWEEN_PROBINGS in probe_pt (PR #2281)

Marlin/Marlin_main.cpp

 
   // Probe bed height at position (x,y), returns the measured z value
   static float probe_pt(float x, float y, float z_before, ProbeAction probe_action=ProbeDeployAndStow, int verbose_level=1) {
-    // move to right place
+    // Move Z up to the z_before height, then move the probe to the given XY
     do_blocking_move_to(current_position[X_AXIS], current_position[Y_AXIS], z_before); // this also updates current_position
     do_blocking_move_to(x - X_PROBE_OFFSET_FROM_EXTRUDER, y - Y_PROBE_OFFSET_FROM_EXTRUDER, current_position[Z_AXIS]); // this also updates current_position
 
     run_z_probe();
     float measured_z = current_position[Z_AXIS];
 
-    #if Z_RAISE_BETWEEN_PROBINGS > 0
-      if (probe_action == ProbeStay) {
-        do_blocking_move_to(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS] + Z_RAISE_BETWEEN_PROBINGS); // this also updates current_position
-        st_synchronize();
-      }
-    #endif
-
     #if !defined(Z_PROBE_SLED) && !defined(Z_PROBE_ALLEN_KEY)
       if (probe_action & ProbeStow) stow_z_probe();
     #endif