Converted Host mode demos to schedulerless. Fixed host mode broken due to earlier Start-of-frame event experiments.

LUFA/Drivers/USB/LowLevel/LowLevel.c

@@ -38,8 +38,6 @@ volatile uint8_t USB_CurrentMode = USB_MODE_NONE;
 volatile uint8_t USB_Options;
 #endif
 
-volatile bool FrameElapsed;
-
 void USB_Init(
                #if defined(USB_CAN_BE_BOTH)
                const uint8_t Mode
@@ -152,8 +150,6 @@ void USB_ResetInterface(void)
 	USB_INT_DisableAllInterrupts();
 	USB_INT_ClearAllInterrupts();
 
-	FrameElapsed = false;
-
 	USB_IsConnected = false;
 
 	#if defined(USB_CAN_BE_HOST)