Merge pull request arduino#1233 from mgrdcm/fix_KAMC_example

Removing duplicate comment from top of KeyboardAndMouseControl example code.

Author: cmaglie

build/shared/examples/09.USB/KeyboardAndMouseControl/KeyboardAndMouseControl.ino

@@ -22,8 +22,6 @@
  
  */
 
-// set pin numbers for the five buttons:
-
 // set pin numbers for the five buttons:
 const int upButton = 2;     
 const int downButton = 3;