The government committee assigned to probe how detained BNP lawmaker Salauddin Quader Chowdhury could send a letter to  the British government from jail has yet to submit a report.  The committee could not do the job though over two weeks have passed since expiry of its time limit.  Contacted, the committee chief on Sunday said he no longer heads it.  The government formed the three-member probe body on March 1.  Headed by Additional Home Secretary Mohammad Iqbal Khan Chowdhury, the committee was given 15 days to submit report. The deputy …