Remove any existing tahoelafs install

src/freedombone-app-tahoelafs

@@ -617,13 +617,16 @@ function install_tahoelafs {
 
     apt-get -yq install build-essential python-pip python-dev libffi-dev libssl-dev
     apt-get -yq install libcrypto++-dev python-pycryptopp python-cffi python-virtualenv
+    if [ -d $TAHOE_DIR ]; then
+        deluser --remove-all-files tahoelafs
+        delgroup tahoelafs
+        rm -rf $TAHOE_DIR
+    fi
+
     # create a user
-    if [ ! -d $TAHOE_DIR ]; then
-        # add a gogs user account
     adduser --disabled-login --gecos 'tahoe-lafs' tahoelafs
     adduser tahoelafs debian-tor
     groupadd tahoelafs
-    fi
 
     apt-get -yq install tahoe-lafs
     pip install tahoe-lafs[tor]