debian: remove old symlink on postrm

Signed-off-by: strawberry <strawberry@puppygock.gay>

debian/postrm

@@ -5,6 +5,7 @@ set -e
 
 CONDUWUIT_CONFIG_PATH=/etc/conduwuit
 CONDUWUIT_DATABASE_PATH=/var/lib/conduwuit
+CONDUWUIT_DATABASE_PATH_SYMLINK=/var/lib/matrix-conduit
 
 case $1 in
   purge)
@@ -21,6 +22,10 @@ case $1 in
     if [ -d "$CONDUWUIT_DATABASE_PATH" ]; then
       rm -v -r "$CONDUWUIT_DATABASE_PATH"
     fi
+
+    if [ -d "$CONDUWUIT_DATABASE_PATH_SYMLINK" ]; then
+      rm -v -r "$CONDUWUIT_DATABASE_PATH_SYMLINK"
+    fi
     ;;
 esac