Warnaweera, a former Test medium-pacer, had failed to turn up yesterday for a match-fixing investigation conducted by the ICC Anti-Corruption and Security Unit (ASCU).
"We have relieved him of the curator's role for the first Test," Sidath Wettimuny, the chairman of Sri Lanka Cricket interm committee said today.
Warnaweera headed the Galle stadium continuously for over 10 years.
His name is said to have been linked to a 2006 match- fixing inquiry. Two ASCU investigators are in Colombo for the inquiry.
The first Test against the West Indies begins in next Wednesday.