[#78] Remove unused 3rdParty/efsw directory
[#78] Remove unused 3rdParty/efsw directory

Manu343726/siplasplas,Manu343726/siplasplas,GueimUCM/siplasplas,GueimUCM/siplasplas,Manu343726/siplasplas,GueimUCM/siplasplas,Manu343726/siplasplas