chore: remove unused imports

Author: Elscrux

src/test/java/edu/kit/provideq/toolbox/api/QuboSolverTest.java

@@ -2,11 +2,8 @@
 
 import static edu.kit.provideq.toolbox.qubo.QuboConfiguration.QUBO;
 
-import edu.kit.provideq.toolbox.SolutionStatus;
 import edu.kit.provideq.toolbox.meta.ProblemManagerProvider;
 import edu.kit.provideq.toolbox.meta.ProblemSolver;
-import edu.kit.provideq.toolbox.qubo.solvers.KipuQuboSolver;
-import edu.kit.provideq.toolbox.qubo.solvers.QuantagoniaQuboSolver;
 import java.time.Duration;
 import java.util.stream.Stream;
 import org.junit.jupiter.api.BeforeEach;