COMMISSION REGULATION (EEC) No 2930/93 of 25 October 1993 amending Regulation (EEC) No 1786/93 determining, for the period 1 July 1993 to 28 February 1994, the quantities of raw sugar produced in the French Overseas Departments for which the refining aid specified in Council Regulation (EEC) No 2225/86 may be granted