fix travis

Author: hathach

.travis.yml

@@ -25,13 +25,8 @@ install:
   # Install BSP for tools, then remove and create symlink the git code
   - arduino --install-boards adafruit:nrf52
   - BSP_VERSION=`eval ls $BSP_PATH`
-  - echo $(BSP_VERSION)
   - rm -r $BSP_PATH/*
   - ln -s $TRAVIS_BUILD_DIR $BSP_PATH/$BSP_VERSION
-  - ls $BSP_PATH
-  - ls $BSP_PATH/*
-  - ls $BSP_PATH/*/*
-  - tree $HOME/.arduino15/packages/adafruit/hardware/nrf52
   - arduino --install-library "Adafruit NeoPixel","Adafruit NeoMatrix","Adafruit GFX Library","Adafruit SSD1306","MIDI Library",
 
 before_script: