Cachetool: Don't run by default

On the Hypernode platform, we have validate_timestamps enabled by
default, so we don't have to manually clear the opcache. People can
still enable this by configuring `after('deploy:symlink',
'cachetool:clear:opcache');`.

Author: tdgroot

src/Deployer/Task/After/CachetoolTask.php

@@ -37,7 +37,6 @@ class CachetoolTask extends TaskBase
 
     public function register(): void
     {
-        after('deploy:symlink', 'cachetool:clear:opcache');
         after('cachetool:clear:opcache', 'cachetool:cleanup');
     }