removePage method
Removes a top-level page from the target project by name.
Implementation
void removePage(String name) {
_queueRemoval(
name: name,
kind: 'page',
declarationApi: 'page',
declaredNames: _pageNames,
);
_rawMutations.add(
(project) => project_helpers.removePage(project, name: name),
);
}