correction SonarCloud warnings

Author: dedece35

src/test/java/fr/greencodeinitiative/java/JavaRulesDefinitionTest.java

@@ -29,14 +29,12 @@
 import org.sonar.api.utils.Version;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.fail;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 
 class JavaRulesDefinitionTest {
 
     private RulesDefinition.Repository repository;
-    private RulesDefinition.Context context;
 
     private int rulesSize;
 

src/test/java/fr/greencodeinitiative/java/checks/AvoidGettingSizeCollectionInLoopTest.java

@@ -22,7 +22,7 @@
 
 class AvoidGettingSizeCollectionInLoopTest {
     @Test
-    public void testBadForLoop() {
+    void testBadForLoop() {
         CheckVerifier.newVerifier()
                 .onFile("src/test/files/AvoidGettingSizeCollectionInForLoopBad.java")
                 .withCheck(new AvoidGettingSizeCollectionInLoop())