Remove unused HardwareId parameter.

Author: Fredrik Orderud

TailLight/device.cpp

@@ -123,16 +123,6 @@ Routine Description:
 
         KdPrint(("TailLight: PdoName: %wZ\n", deviceContext->PdoName)); // outputs "\Device\00000083"
     }
-    {
-        // initialize DEVICE_CONTEXT struct with HardwareId
-        deviceContext->HardwareId = GetTargetPropertyString(WdfDeviceGetIoTarget(device), DevicePropertyHardwareID);
-        if (!deviceContext->HardwareId.Buffer) {
-            KdPrint(("TailLight: HardwareId query failed\n"));
-            return STATUS_UNSUCCESSFUL;
-        }
-
-        KdPrint(("TailLight: HardwareId: %wZ\n", deviceContext->HardwareId));
-    }
 
     {
         // create queue for filtering

TailLight/device.h

@@ -4,7 +4,6 @@
 struct DEVICE_CONTEXT {
     UNICODE_STRING PdoName;
     WDFWMIINSTANCE WmiInstance;
-    UNICODE_STRING HardwareId;
 };
 WDF_DECLARE_CONTEXT_TYPE(DEVICE_CONTEXT)