Revert "Set iSize for thermal device enum first."

This reverts commit 990bb4a994.

Thermal devices is not used. 1st of 3 reverts.

adl.c

@@ -316,7 +316,6 @@ void init_adl(int nDevs)
 		ga->DefPerfLev = NULL;
 		ga->twin = NULL;
 
-		ga->lpThermalControllerInfo.iSize=sizeof(ADLThermalControllerInfo);
 		if (ADL_Overdrive5_ThermalDevices_Enum(iAdapterIndex, 0, &ga->lpThermalControllerInfo) != ADL_OK)
 			applog(LOG_INFO, "Failed to ADL_Overdrive5_ThermalDevices_Enum");