Revert "Seeding the PRNG on every call to it."

This reverts commit 7168ee91de.

Blades of Exile/tools/mathutil.cpp

@@ -18,7 +18,6 @@ short get_ran (short times,short  min,short  max){
 	if(max < min) max = min;
 
 	for (i = 1; i < times + 1; i++) {
-		srand(GetTickCount());
 		store = rand();
 		to_ret += min + (store % (max - min + 1));//min + (((store + 32767) * (max - min + 1)) / 65536);
 	}