diff --git a/contrib/x11/x-events.factor b/contrib/x11/x-events.factor
deleted file mode 100644
index 3286c79e58..0000000000
--- a/contrib/x11/x-events.factor
+++ /dev/null
@@ -1,40 +0,0 @@
-IN: x11
-USING: alien kernel sequences namespaces strings syntax math generic parser ;
-
-: x-event-type
-    #! XEvent is a union of the various X*Event structs. All of them have
-    #! 'int type' as their first field.
-    0 alien-signed-4 ;
-
-PREDICATE: integer upper
-    dup CHAR: A >= swap CHAR: Z <= and ;
- 
-: uncapitalise ( "Capitalised" | "capitalised" -- "capitalised" )
-    dup first ch>lower swap >sbuf 0 swap [ set-nth ] keep >string ;
-
-GENERIC: (camel>dashed)
-M: upper (camel>dashed) ( CHAR: X -- )
-    CHAR: - , ch>lower , ;
-M: object (camel>dashed) ( CHAR: x -- ) , ;
-
-: camel>dashed ( "SomeName" -- "some-name" )
-    uncapitalise [ [ (camel>dashed) ] each ] "" make ;
-
-: x-event-predicate ( EventName -- )
-    #! creates a predicate for x-event-name-event
-    #! EventName should be a valid XEvent.type (defined in x.factor)
-    #! note: c structs are represented as byte-arrays in factor
-    [ "IN: x11 PREDICATE: byte-array x-" % dup camel>dashed % "-event x-event-type " %
-      % " = ;" % ] "" make eval ;
-
-[
-    "KeyPress" "KeyRelease" "ButtonPress" "ButtonRelease" "MotionNotify"
-    "EnterNotify" "LeaveNotify" "FocusIn" "FocusOut" "KeymapNotify"
-    "Expose" "GraphicsExpose" "NoExpose" "VisibilityNotify" "CreateNotify"
-    "DestroyNotify" "UnmapNotify" "MapNotify" "MapRequest" "ReparentNotify"
-    "ConfigureNotify" "ConfigureRequest" "GravityNotify" "ResizeRequest"
-    "CirculateNotify" "CirculateRequest" "PropertyNotify" "SelectionClear"
-    "SelectionRequest" "SelectionNotify" "ColormapNotify" "ClientMessage"
-    "MappingNotify"
-] [ x-event-predicate ] each
-