Controller repeat inputs stuck on UI nodes

[rsubtil]

RetroHub has a built-in solution to handle UI repeat events for controllers. However, recent changes in Godot have replicated this behavior, and now both solutions are in conflict. Since Godot's solution only works for specific nodes, it's better to revert that functionality in our fork.

[rsubtil]

Reverted commit with retrohub-org/godot@a277a4a, need to rebuild CI for new version.