refactoring: removed unused import in gamemanagertest

src/test/java/pacmanTests/GameManagerTest.java

@@ -1,7 +1,6 @@
 package pacmanTests;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.jupiter.api.Assertions.*;
 
 import org.junit.jupiter.api.Test;