How do I unset a link?

I want to programmatically decide whether to render a link or not. This should apply to all links e.g anchor tags (no wysywigs) Not only menu links.

I tried using hook_link_alter.

/**  * Implements hook_link_alter().  */ function mymodule_link_alter(&$variables) {   $my_logic = TRUE;   if ($my_logic) {     // Any way to not render the link?     // I tried:     // $variables = []; and unsetting keys with no luck     // I guess i could set a flag here and somewhere else process it, but where?   } } 

I can alter the structure, but I don’t see any way to unset the element. What I want is basically to not render the element if $my_logic.

I also tried to use a service with the path_processor_outbound tag, but I have the same problem. I can just alter processOutbound() but not to not process.

Does anybody have any idea?

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How do I unset a link?

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