replace groovy script with ability property

release/Magarena/scripts/Elvish_Farmer.groovy

@@ -1,28 +0,0 @@
-[
-    new MagicPermanentActivation(
-        new MagicActivationHints(MagicTiming.Removal),
-        "Life"
-    ) {
-        @Override
-        public Iterable<MagicEvent> getCostEvent(final MagicPermanent source) {
-            return [
-                new MagicSacrificePermanentEvent(
-                    source,
-                    MagicTargetChoice.SACRIFICE_SAPROLING
-                )
-            ];
-        }
-        @Override
-        public MagicEvent getPermanentEvent(final MagicPermanent source,final MagicPayedCost payedCost) {
-            return new MagicEvent(
-                source,
-                this,
-                "PN gains 2 life."
-            );
-        }
-        @Override
-        public void executeEvent(final MagicGame game, final MagicEvent event) {
-            game.doAction(new MagicChangeLifeAction(event.getPlayer(),2));
-        }
-    }
-]

release/Magarena/scripts/Elvish_Farmer.txt

@@ -7,5 +7,6 @@ type=Creature
 subtype=Elf
 cost={1}{G}
 pt=0/2
+ability=pay {SS} PN gains 2 life.
 timing=main
-requires_groovy_code=Thallid;Elvish_Farmer
+requires_groovy_code=Thallid