Bug 126779 [IDE] Removed deprecated project capabilities API and implementation
It was created then deprecated before 2.0 shipped. As has never been API and we don't use it we should delete it.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/registry/Capability.java
* method. If the wizard cannot be created, <code>null</code>
     * is returned.
     * 
     * @return the non-initialized capability wizard or
     * 		<code>null</code> if the wizard cannot be created.
     */
    public ICapabilityUninstallWizard getUninstallWizard() {
        if (!isValid())
            return null;
        try {
            return (ICapabilityUninstallWizard) element
                    .createExecutableExtension(ATT_UNINSTALL_WIZARD);
        } catch (CoreException e) {
            IDEWorkbenchPlugin
                    .log(
                            "Could not create capability uninstall wizard.", e.getStatus()); 
            return null;
        }
    }
    /**
     * Returns the description for the uninstall wizard
     * or <code>null</code> if none supplied.
     */
    public String getUninstallDetails() {
        if (!isValid())
            return null;
        return element.getAttribute(ATT_UNINSTALL_DETAILS);
    }
    public String getDescription() {
        if (!isValid())