deleted unused imports

Signed-off-by: Naledi EL CHEIKH <[email protected]>

Author: Naledi EL CHEIKH

java/pypowsybl/src/test/java/com/powsybl/python/security/SecurityAnalysisTest.java

@@ -7,8 +7,6 @@
  */
 package com.powsybl.python.security;
 
-import com.google.common.jimfs.Configuration;
-import com.google.common.jimfs.Jimfs;
 import com.powsybl.commons.report.ReportNode;
 import com.powsybl.contingency.ContingencyContext;
 import com.powsybl.contingency.ContingencyContextType;
@@ -25,14 +23,11 @@
 import org.assertj.core.data.Offset;
 import org.junit.jupiter.api.Test;
 
-import java.io.IOException;
 import java.nio.file.FileSystem;
-import java.nio.file.Files;
 import java.util.Collections;
 import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 
 /**
  * @author Etienne Lesot {@literal <etienne.lesot at rte-france.com>}