chronos-exporter: Clean up SVG files

Change-Id: I19f116f4eaeee345a6459949f2ffe786a5cc8ef5
diff --git a/chronos-exporter/files/configs/demo-configuration.yaml b/chronos-exporter/files/configs/demo-configuration.yaml
index cb94a99..0fce178 100644
--- a/chronos-exporter/files/configs/demo-configuration.yaml
+++ b/chronos-exporter/files/configs/demo-configuration.yaml
@@ -126,9 +126,7 @@
       isometric: true
       origin: ORIGIN_TOP_LEFT
       layers:
-        - layer-id: Small-Cells
-        - layer-id: Beams
-        - layer-id: Devices
+        - layer-id: Structures
         - layer-id: Text
       site-plan-list:
         - id: floor-0