config: Don't use arduino aliases in example-xxx.cfg files

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

config/example-polar.cfg

@@ -7,44 +7,44 @@
 # See docs/Config_Reference.md for a description of parameters.
 
 [stepper_bed]
-step_pin: ar54
-dir_pin: ar55
-enable_pin: !ar38
+step_pin: PF0
+dir_pin: PF1
+enable_pin: !PD7
 microsteps: 16
 gear_ratio: 80:16
 
 [stepper_arm]
-step_pin: ar60
-dir_pin: ar61
-enable_pin: !ar56
+step_pin: PF6
+dir_pin: PF7
+enable_pin: !PF2
 microsteps: 16
 rotation_distance: 40
-endstop_pin: ^ar14
+endstop_pin: ^PJ1
 position_endstop: 300
 position_max: 300
 homing_speed: 50
 
 [stepper_z]
-step_pin: ar46
-dir_pin: ar48
-enable_pin: !ar62
+step_pin: PL3
+dir_pin: PL1
+enable_pin: !PK0
 microsteps: 16
 rotation_distance: 8
-endstop_pin: ^ar18
+endstop_pin: ^PD3
 position_endstop: 0.5
 position_max: 200
 
 [extruder]
-step_pin: ar26
-dir_pin: ar28
-enable_pin: !ar24
+step_pin: PA4
+dir_pin: PA6
+enable_pin: !PA2
 microsteps: 16
 rotation_distance: 33.500
 nozzle_diameter: 0.400
 filament_diameter: 1.750
-heater_pin: ar10
+heater_pin: PB4
 sensor_type: ATC Semitec 104GT-2
-sensor_pin: analog13
+sensor_pin: PK5
 control: pid
 pid_Kp: 22.2
 pid_Ki: 1.08
@@ -53,19 +53,18 @@ min_temp: 0
 max_temp: 250
 
 [heater_bed]
-heater_pin: ar8
+heater_pin: PH5
 sensor_type: EPCOS 100K B57560G104F
-sensor_pin: analog14
+sensor_pin: PK6
 control: watermark
 min_temp: 0
 max_temp: 130
 
 [fan]
-pin: ar9
+pin: PH6
 
 [mcu]
 serial: /dev/ttyACM0
-pin_map: arduino
 
 [printer]
 kinematics: polar