83790 Revert “Dispose render objects when owning element is unmounted.” (team, framework, cla: yes, d: examples)

83843 Clean up the bindings APIs (a: tests, team, framework, f: material design, a: accessibility, cla: yes, f: cupertino, d: examples, waiting for tree to go green)

83920 Reland “Dispose render objects when owning element is unmounted. (#82883)” (#83790) (team, framework, cla: yes, d: examples, waiting for tree to go green)

84476 Turn on avoid_dynamic_calls lint, except packages/flutter tests, make appropriate changes. (a: tests, team, tool, framework, f: material design, a: accessibility, a: internationalization, cla: yes, f: cupertino, d: examples)