Fix calibrate_z_auto crashing Z-axis

Steps to reproduce:
1. Run M45 Z after booting the printer up

Change in memory:
Flash: -4 bytes
SRAM: 0 bytes

Firmware/Marlin_main.cpp

@@ -2178,7 +2178,6 @@ bool calibrate_z_auto()
 	//	current_position[axis] = 0;
 	//	plan_set_position_curposXYZE();
 	tmc2130_home_exit();
-	enable_endstops(false);
 	current_position[Z_AXIS] = 0;
 	plan_set_position_curposXYZE();
 	set_destination_to_current();