[WFCORE-6666] Remove deprecated methods on DomainTestSupport

Jira issue: https://issues.redhat.com/browse/WFCORE-6666

testsuite/shared/src/main/java/org/jboss/as/test/integration/domain/management/util/DomainTestSupport.java

@@ -41,12 +41,7 @@ public class DomainTestSupport implements AutoCloseable {
 
     public static final String primaryAddress = System.getProperty("jboss.test.host.primary.address", "127.0.0.1");
     public static final String secondaryAddress = System.getProperty("jboss.test.host.secondary.address", "127.0.0.1");
-    /** @deprecated unused */
-    @Deprecated()
-    public static final long domainBootTimeout = Long.valueOf(System.getProperty("jboss.test.domain.boot.timeout", "60000"));
-    /** @deprecated unused */
-    @Deprecated
-    public static final long domainShutdownTimeout = Long.valueOf(System.getProperty("jboss.test.domain.shutdown.timeout", "20000"));
+
     @SuppressWarnings("WeakerAccess")
     public static final String primaryJvmHome = System.getProperty("jboss.test.host.primary.jvmhome");
     @SuppressWarnings("WeakerAccess")
@@ -506,17 +501,6 @@ public void close() {
         }
     }
 
-    /**
-     * Calls {@link #close()}. This object cannot be used for controlling or interacting with hosts after
-     * this is called.
-     *
-     * @deprecated Use {@link #close()}
-     */
-    @Deprecated
-    public void stop() {
-        close();
-    }
-
     /**
      * Stops the {@link #getDomainPrimaryLifecycleUtil() primary host} and, if there is one, the
      * {@link #getDomainSecondaryLifecycleUtil() secondary host}. Stops are done concurrently with 2 minute