config: Update example configs to use rotation_distance

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

config/printer-tronxy-x5sa-v6-2019.cfg

@@ -26,7 +26,8 @@ max_z_accel: 30
 step_pin: PE5
 dir_pin: !PE6
 enable_pin: !PC13
-step_distance: .006275
+microsteps: 16
+rotation_distance: 20
 endstop_pin: !PG10
 position_endstop: -1
 position_min: -1
@@ -39,7 +40,8 @@ second_homing_speed: 10.0
 step_pin: PE2
 dir_pin: !PE3
 enable_pin: !PE4
-step_distance: .006275
+microsteps: 16
+rotation_distance: 20
 endstop_pin: !PA12
 position_endstop: 0
 position_max: 330
@@ -51,7 +53,8 @@ second_homing_speed: 10.0
 step_pin: PB9
 dir_pin: PE0
 enable_pin: !PE1
-step_distance: .00125
+microsteps: 16
+rotation_distance: 4
 endstop_pin: probe:z_virtual_endstop
 position_max: 400
 position_min: -2
@@ -60,7 +63,8 @@ position_min: -2
 step_pin: PB4
 dir_pin: PB5
 enable_pin: !PB8
-step_distance: 0.0111
+microsteps: 16
+rotation_distance: 35.520
 nozzle_diameter: 0.400
 filament_diameter: 1.750
 heater_pin: PG12