final IFacetedProject facetedProject = ProjectFacetsManager.create(project, true, monitor);
IProjectFacet composerFacet = ProjectFacetsManager.getProjectFacet(ComposerFacetConstants.COMPOSER_COMPONENT);
facetedProject.uninstallProjectFacet(composerFacet.getVersion(ComposerFacetConstants.COMPOSER_COMPONENT_VERSION_1), composerFacet, monitor);
} catch (CoreException ex) {
Logger.logException(ex.getMessage(), ex);
}
}