delete misc files from the aiy-maker-kit folder after setup

Change-Id: I49a0945303205b0b73c25770231b1b835878e116
diff --git a/README.md b/README.md
index da0ff1b..295055a 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@
 **Note:** If you're on macOS, you need to install `coreutils` (run either
 `brew install coreutils` or `sudo port install coreutils`).
 
-You can build the SD card image using Docker by running this command
+Then you can build the SD card image using Docker by running this command
 from the repo root (on Linux or Mac):
 
 ```
@@ -32,6 +32,9 @@
 Or build it without Docker with this command (on Linux only):
 
 ```
+# You might need to install a few tool dependencies first:
+# sudo apt-get install zerofree qemu qemu-user-static binfmt-support
+
 make release
 ```
 
diff --git a/scripts/setup_image.sh b/scripts/setup_image.sh
index a4b99e2..1356728 100644
--- a/scripts/setup_image.sh
+++ b/scripts/setup_image.sh
@@ -95,6 +95,9 @@
 bash aiy-maker-kit/examples/download_models.sh
 bash aiy-maker-kit/projects/download_models.sh
 chown -R pi:pi aiy-maker-kit
+# Remove unecessary/confusing files
+cd aiy-maker-kit
+rm -rf aiymakerkit.egg-info .git build docs
 
 # Change the wallpaper
 mkdir -p /home/pi/.config/pcmanfm/LXDE-pi