method
skip_before_filter

skip_before_filter(*filters)
public
Removes the specified filters from the before filter chain. Note that this only works for skipping method-reference filters, not procs. This is especially useful for managing the chain in inheritance hierarchies where only one out of many sub-controllers need a different hierarchy.
You can control the actions to skip the filter for with the :only and :except options, just like when you apply the filters.