Running this lisp will remove all Layer Filters. Toggle the Layer Palette off then back on to update it's display.
Code:
; Delete Layer Filters by Lee Mac
(defun c:dlf ( )
(
(lambda ( _vla-remove dictionary )
(_vla-remove "ACLYDICTIONARY" dictionary)
(_vla-remove "ACAD_LAYERFILTERS" dictionary)
)
(lambda ( item dictionary )
(vl-catch-all-apply 'vla-remove (list dictionary item))
)
(vla-getextensiondictionary
(vla-get-layers (vla-get-activedocument (vlax-get-acad-object)))
)
)
(princ)
)
(vl-load-com) (princ)