Have run_probe() return probe Z, not nozzle Z

Marlin/Marlin_main.cpp

@@ -2233,7 +2233,7 @@ static void clean_up_after_endstop_or_probe_move() {
         SERIAL_ECHOLNPAIR(" Discrepancy:", first_probe_z - current_position[Z_AXIS]);
       }
     #endif
-    return current_position[Z_AXIS];
+    return current_position[Z_AXIS] + zprobe_zoffset;
   }
 
   //
@@ -2287,7 +2287,7 @@ static void clean_up_after_endstop_or_probe_move() {
       SERIAL_PROTOCOLPGM(" Y: ");
       SERIAL_PROTOCOL_F(y, 3);
       SERIAL_PROTOCOLPGM(" Z: ");
-      SERIAL_PROTOCOL_F(FIXFLOAT(measured_z - -zprobe_zoffset), 3);
+      SERIAL_PROTOCOL_F(FIXFLOAT(measured_z), 3);
       SERIAL_EOL;
     }
 
@@ -4408,7 +4408,7 @@ inline void gcode_G28() {
         if ( NEAR(current_position[X_AXIS], xProbe - (X_PROBE_OFFSET_FROM_EXTRUDER))
           && NEAR(current_position[Y_AXIS], yProbe - (Y_PROBE_OFFSET_FROM_EXTRUDER))
         ) {
-          float simple_z = current_position[Z_AXIS] - (measured_z - (-zprobe_zoffset));
+          float simple_z = current_position[Z_AXIS] - measured_z;
           #if ENABLED(DEBUG_LEVELING_FEATURE)
             if (DEBUGGING(LEVELING)) {
               SERIAL_ECHOPAIR("Z from Probe:", simple_z);
@@ -4503,7 +4503,7 @@ inline void gcode_G28() {
     SERIAL_PROTOCOLPGM(" Y: ");
     SERIAL_PROTOCOL(FIXFLOAT(Y_probe_location));
     SERIAL_PROTOCOLPGM(" Z: ");
-    SERIAL_PROTOCOLLN(FIXFLOAT(measured_z - -zprobe_zoffset));
+    SERIAL_PROTOCOLLN(FIXFLOAT(measured_z));
 
     clean_up_after_endstop_or_probe_move();
 

Marlin/UBL_G29.cpp

@@ -49,7 +49,6 @@
   extern bool code_value_bool();
   extern bool code_has_value();
   extern float probe_pt(float x, float y, bool, int);
-  extern float zprobe_zoffset;
   extern bool set_probe_deployed(bool);
   #define DEPLOY_PROBE() set_probe_deployed(true)
   #define STOW_PROBE() set_probe_deployed(false)
@@ -516,9 +515,9 @@
     }
 
     if (code_seen('T')) {
-      float z1 = probe_pt(ubl_3_point_1_X, ubl_3_point_1_Y, false /*Stow Flag*/, g29_verbose_level) + zprobe_zoffset,
-            z2 = probe_pt(ubl_3_point_2_X, ubl_3_point_2_Y, false /*Stow Flag*/, g29_verbose_level) + zprobe_zoffset,
-            z3 = probe_pt(ubl_3_point_3_X, ubl_3_point_3_Y, true  /*Stow Flag*/, g29_verbose_level) + zprobe_zoffset;
+      float z1 = probe_pt(ubl_3_point_1_X, ubl_3_point_1_Y, false /*Stow Flag*/, g29_verbose_level),
+            z2 = probe_pt(ubl_3_point_2_X, ubl_3_point_2_Y, false /*Stow Flag*/, g29_verbose_level),
+            z3 = probe_pt(ubl_3_point_3_X, ubl_3_point_3_Y, true  /*Stow Flag*/, g29_verbose_level);
 
       //  We need to adjust z1, z2, z3 by the Mesh Height at these points. Just because they are non-zero doesn't mean
       //  the Mesh is tilted!  (We need to compensate each probe point by what the Mesh says that location's height is)
@@ -761,7 +760,7 @@
           goto LEAVE;
         }
         const float measured_z = probe_pt(LOGICAL_X_POSITION(rawx), LOGICAL_Y_POSITION(rawy), stow_probe, g29_verbose_level);
-        ubl.z_values[location.x_index][location.y_index] = measured_z + zprobe_zoffset;
+        ubl.z_values[location.x_index][location.y_index] = measured_z;
       }
 
       if (do_ubl_mesh_map) ubl.display_map(map_type);

Marlin/ultralcd.cpp

@@ -30,8 +30,6 @@
 #include "configuration_store.h"
 #include "utility.h"
 
-extern float zprobe_zoffset;
-
 #if HAS_BUZZER && DISABLED(LCD_USE_I2C_BUZZER)
   #include "buzzer.h"
 #endif