test: Update test case to not use pin_map

Remove all users of the pin_map setting.

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

test/klippy/bed_screws.cfg

@@ -1,33 +1,33 @@
 # Test config for bed screws tool
 [stepper_x]
-step_pin: ar54
-dir_pin: ar55
-enable_pin: !ar38
+step_pin: PF0
+dir_pin: PF1
+enable_pin: !PD7
 rotation_distance: 40
 microsteps: 16
-endstop_pin: ^ar3
+endstop_pin: ^PE5
 position_endstop: 0
 position_max: 200
 homing_speed: 50
 
 [stepper_y]
-step_pin: ar60
-dir_pin: !ar61
-enable_pin: !ar56
+step_pin: PF6
+dir_pin: !PF7
+enable_pin: !PF2
 rotation_distance: 40
 microsteps: 16
-endstop_pin: ^ar14
+endstop_pin: ^PJ1
 position_endstop: 0
 position_max: 200
 homing_speed: 50
 
 [stepper_z]
-step_pin: ar46
-dir_pin: ar48
-enable_pin: !ar62
+step_pin: PL3
+dir_pin: PL1
+enable_pin: !PK0
 rotation_distance: 8
 microsteps: 16
-endstop_pin: ^ar18
+endstop_pin: ^PD3
 position_endstop: 0.5
 position_max: 200
 
@@ -43,7 +43,6 @@ screw3_fine_adjust: 75,90
 
 [mcu]
 serial: /dev/ttyACM0
-pin_map: arduino
 
 [printer]
 kinematics: cartesian