'temp_ready' was never used 'temp' is a value which has to be retrieved
from the device at the same moment when it is required. Thus, there is
no point to have a structure member for it in 'fmctdc_dev'.
Reported-by: Federico Vaga <federico.vaga@cern.ch>
Signed-off-by: Vaibhav Gupta <vaibhav.gupta@cern.ch>