AF-2797: Reenable tests on jdk 11 (#3559)

Due to recent jdk11 support [1] introduced on master we should re-enable few tests [2] not working on jdk 11 previously.

[1] - https://issues.redhat.com/browse/AF-1799
[2] - https://issues.redhat.com/browse/AF-2797

kie-wb-common-dmn/kie-wb-common-dmn-client/src/test/java/org/kie/workbench/common/dmn/client/commands/expressions/types/dtable/AddOutputClauseCommandTest.java

@@ -20,7 +20,6 @@
 import java.util.Optional;
 import java.util.stream.Stream;
 
-import org.junit.Assume;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -95,14 +94,6 @@ public class AddOutputClauseCommandTest {
 
     private AddOutputClauseCommand command;
 
-    @Before
-    public void doNotRunTestsOnJdkEleven() {
-
-        final String javaVersion = "11";
-        final String javaVersionPropertyKey = "java.version";
-        Assume.assumeFalse(System.getProperty(javaVersionPropertyKey).contains(javaVersion));
-    }
-
     @Before
     public void setUp() throws Exception {
         this.dtable = new DecisionTable();