moving print ports to examples (#288)

docs/reference/brick.md

@@ -9,7 +9,6 @@ brick.showString("Hello world!", 1);
 brick.showNumber(0, 1);
 brick.showValue("item", 0, 1);
 brick.clearScreen();
-brick.printPorts();
 ```
 
 ## Buttons

docs/reference/brick/print-ports.md

@@ -1,19 +0,0 @@
-# print Ports
-
-Print the status of the ports on the screen.
-
-```sig
-brick.printPorts();
-```
-
-## Example
-
-Show the port status.
-
-```blocks
-brick.printPorts();
-```
-
-## See also
-
-[show string](/reference/brick/show-string), [show value](/reference/brick/show-value)