CLEAR_FOG and UNCLEAR_FOG retrofitted to use [lift_fog] and [reset_fog].

The Fog Clearer unit is now unused in mainline

changelog

@@ -186,6 +186,7 @@ Version 1.11.0-svn:
      instead
    * Border hexes are included when using radius= in the SLF of [remove_shroud]
      and [place_shroud] (they were already included for directly matched hexes).
+   * Retrofitted CLEAR_FOG and UNCLEAR_FOG macros to make use of [lift_fog] and [reset_fog]
  * Miscellaneous and bug fixes:
    * Fix wrong preferences path suffix (1.1 instead of 1.10) on Linux and other
      platforms using XDG layout (no compiled-in preferences path override,

data/core/macros/interface-utils.cfg

@@ -1,4 +1,4 @@
-#textdomain wesnoth
+wes#textdomain wesnoth
 # Interface shortcut macros.
 
 # These don't depend on any other macros.  Please don't change this.
@@ -93,34 +93,22 @@
 #enddef
 
 #define CLEAR_FOG SIDE X Y RADIUS
-    # Clears fog in a specific area for the given side. This is to be used only
-    # for the duration of an event: always use {UNCLEAR_FOG} (below) before the
-    # event exits, or otherwise you'll be left with fake fog clearer units on
-    # the map.
-    [unit]
-        side={SIDE}
-        type=Fog Clearer
+    # Clears fog in a specific area for the given side.
+    [lift_fog]
+        [filter_side]
+            side={SIDE}
+        [/filter_side]
         x,y={X},{Y}
-        max_moves={RADIUS}
-    [/unit]
-
-    [hide_unit]
-        type=Fog Clearer
-    [/hide_unit]
-
-    [redraw]
-        side={SIDE}
-    [/redraw]
+        radius={RADIUS}
+    [/lift_fog]
 #enddef
 
 #define UNCLEAR_FOG
     # Restores fog that was temporarily cleared (check CLEAR_FOG above). Only
     # one UNCLEAR_FOG is required no matter how many times CLEAR_FOG was used.
-    [kill]
-        type=Fog Clearer
-        animate=no
-        fire_event=no
-    [/kill]
+    [reset_fog]
+        reset_view=yes
+    [/reset_fog]
 #enddef
 
 #define SET_LABEL X Y STRING