Move recursive factorial to recursion package and remove duplicate

Author: Koushik Sai

src/test/java/com/thealgorithms/recursion/FactorialRecursionTest.java

@@ -9,7 +9,6 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-import com.thealgorithms.recursion.FactorialRecursion;
 
 public class FactorialRecursionTest {
     @ParameterizedTest