ControlOptionsScreen.java

@Mixin(ControlsOptionsScreen.class)
public class ControlOptionsScreenMixin {
	@Redirect(
			/* This is the method we're injecting into. We want to use the full method descriptor
			   so we don't get confused with <init>. */
			method = "init()V",
			at = @At(
					// We're redirecting the INVOKE opcode to call our method instead of `addButton`.
					value = "INVOKE",

					// Method descriptor for `addButton`
					target = "Lnet/minecraft/client/gui/screen/Screen;addButton(Lnet/minecraft/client/gui/widget/AbstractButtonWidget;)Lnet/minecraft/client/gui/widget/AbstractButtonWidget;",

					// We want to redirect the second call to `addButton`, so we use the ordinal 1.
					ordinal = 1
			)
	)
	private <T extends AbstractButtonWidget> T dontAddJumpButton(Screen screen, T button) {
		/* We need to return a button to match the original method signature, but it won't actually be
		   added to the screen. */
		return button;
	}
}