Revert "Move python3-software-properties apt install to baseline.sh"

This reverts commit ba4dc33739d5bbc10af8930c6a5bb075b88888b4.

Change-Id: Ib8245d94075dec98da1cc96e3e5460857d502289
diff --git a/packer/provision/basebuild.sh b/packer/provision/basebuild.sh
index 5af75bc..36857b6 100644
--- a/packer/provision/basebuild.sh
+++ b/packer/provision/basebuild.sh
@@ -37,6 +37,7 @@
         python \
         python-pip \
         python-virtualenv \
+        python3-software-properties \
         rsync \
         ssh \
         zip
diff --git a/packer/provision/baseline.sh b/packer/provision/baseline.sh
index ccfc859..c8a720d 100644
--- a/packer/provision/baseline.sh
+++ b/packer/provision/baseline.sh
@@ -222,7 +222,7 @@
     echo "---> Updating operating system"
 
     apt-get update -m
-    apt-get install -y python3-software-properties software-properties-common apt-transport-https
+    apt-get install -y software-properties-common apt-transport-https
 
     # add additional repositories
     add-apt-repository "deb http://us.archive.ubuntu.com/ubuntu $(lsb_release -sc) main universe restricted multiverse"