Remove unused fetchBuildings and packPanels

These functions called the Overpass API but were never used by the app
or any of the live scripts.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: cps13

Examples/solar-power-app/README.md

@@ -43,12 +43,10 @@ SolarPanelApp()
 | `clearnessIndex` | Monthly clearness index from latitude/longitude |
 | `ambientTemperature` | Hourly ambient temperature from sinusoidal model |
 | `geocodeAddress` | Convert street address to lat/lon via OpenStreetMap Nominatim |
-| `fetchBuildings` | Fetch building footprints from OpenStreetMap Overpass API |
-| `packPanels` | Fit panel rectangles within a building polygon |
 
 ## Requirements
 
 - MATLAB® R2023a or later
-- Mapping Toolbox™
+- Mapping Toolbox™ (satellite basemap imagery)
 - MATLAB Report Generator™ (optional, for PDF export)
-- Internet connection (satellite basemap, geocoding, building footprints)
+- Internet connection (required for basemap tiles and address geocoding via OpenStreetMap Nominatim)