Remove obsolete lines

preload/main.py

@@ -169,11 +169,9 @@ class Clock:
                     button_pressed = v != 0
 
                     if button_pressed and v & buttons.BOTTOM_LEFT != 0:
-                        button_pressed = True
                         self.setTheme(self.theme - 1)
                         self.writeConfig()
                     elif button_pressed and v & buttons.BOTTOM_RIGHT != 0:
-                        button_pressed = True
                         self.setTheme(self.theme + 1)
                         self.writeConfig()