do not show qr code if one is not set

weather/display.py

@@ -286,7 +286,11 @@ def get_weather_data(self):
 
 # Constants
 MARGIN = 5
-QR_SIZE = 52  # QR code size in pixels
+qr_code_address = os.getenv("weather_mode_qr_code_address")
+if qr_code_address:
+    QR_SIZE = 52  # QR code size in pixels
+else:
+    QR_SIZE = 0
 ICON_PADDING = 2  # Padding around icons
 
 def draw_weather_display(epd, weather_data, last_weather_data=None, set_base_image=False):
@@ -581,7 +585,7 @@ def draw_weather_display(epd, weather_data, last_weather_data=None, set_base_ima
                     forecast_text, font=font_medium, fill=BLACK)
 
     # Generate and draw QR code (larger size) or Raspberry Pi logo
-    qr_code_address = os.getenv("weather_mode_qr_code_address")
+
     if qr_code_address:
         qr = qrcode.QRCode(version=1, box_size=2, border=1)
         qr.add_data(qr_code_address)
@@ -594,25 +598,7 @@ def draw_weather_display(epd, weather_data, last_weather_data=None, set_base_ima
         qr_x = Himage.width - QR_SIZE - MARGIN
         qr_y = MARGIN
         Himage.paste(qr_img, (qr_x, qr_y))
-    else:
-        # Load and display Raspberry Pi logo instead
-        try:
-            logo_path = Path(__file__).parent / "icons" / "Brand raspberrypi.png"
-            logo_img = Image.open(logo_path)
-
-            # Calculate position to center the 46x46 logo in the QR code space
-            logo_x = Himage.width - QR_SIZE - MARGIN + (QR_SIZE - 46) // 2
-            logo_y = MARGIN + (QR_SIZE - 46) // 2
-
-            # Convert logo to match display mode if needed
-            if epd.is_bw_display:
-                logo_img = logo_img.convert('1')
-            else:
-                logo_img = logo_img.convert('RGB')
-
-            Himage.paste(logo_img, (logo_x, logo_y))
-        except Exception as e:
-            logger.error(f"Error loading Raspberry Pi logo: {e}")
+
 
     # Draw time under QR code
     current_time = datetime.now().strftime("%H:%M")