Bug 147737 [Wizards] Delete dead multi step wizard code
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/MultiStepConfigureWizardPage.java
* 
         * @return the result
         */
        public final boolean performCancel() {
            if (wizard != null) {
				return wizard.performCancel();
			}
            return true;
        }
        /**
         * Handles finish request.
         * 
         * @return the result
         */
        public final boolean performFinish() {
            if (wizard != null) {
                if (wizard.performFinish()) {
                    wizard.dispose();
                    wizard.setContainer(null);
                    stepGroup.markStepAsDone();
                    stepIndex++;
                    return true;
                }
                return false;
            }
            return true;
            
        }
        /**
         * Calculates the difference in size between the given