"src/corelib/kernel/qproperty.cpp" documents assignment operators over `QPropertyBinding` for `QProperty` and `QPropertyAlias`. Those operators were removed in 638df6138e7acecc2d3b6aad0771e2d81355f2d2 and are thus stale. Similarly, an assignment operator for `QPropertyAlias<T>` over a `T&&` is documented albeit it was removed in 927647cd032cd2e43bae3184b879586849ffee50. Due an incorrect implementation of QDoc, which has now been removed, with regards to identifying copy/move assignment operators, and the more superficial and incorrect way in which QDoc binds those kind of elements to the clang AST, QDoc was unable to report the lack of a binding declaration for those elements that were removed, producing incorrect documentation instead. As of the latest changes to QDoc this will correctly generate a warning. To avoid the addition of new warnings and remove stale and incorrect documentation, the document blocks were removed from the file. Change-Id: I30e20f26d4c44e4589abf40546d8ebaa4e869638 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>