Update skill_changematerial_db.txt

One line was twice.

db/skill_changematerial_db.txt

@@ -64,7 +64,6 @@
 1064,800,8,1000		// Reins
 1615,200,1,1000		// Bone_Wand
 2267,1000,1,1000	// Cigar
-2267,1000,1,1000	// Cigar
 7063,1000,1,200,1,200,1,100	// Soft_Feather
 7166,1000,2,1000	// Soft_Silk_Cloth
 13269,1000,5,500,2,250,1,100	// Boost500_To_Throw