remove observer check for enemies, readd in 4.3.0

Author: JasperGeurtz

src/main/java/bwapi/Game.java

@@ -931,13 +931,15 @@ public Set<Player> allies() {
                 .collect(Collectors.toSet());
     }
 
+    //TODO FIX in 4.3.0
     public Set<Player> enemies() {
         final Player self = self();
         return getPlayers().stream()
-                .filter(p -> !(p.isObserver() || p.isNeutral() || self.isAlly(p)))
+                .filter(p -> !(p.isNeutral() || self.isAlly(p)))
                 .collect(Collectors.toSet());
     }
 
+    //TODO FIX in 4.3.0
     public Set<Player> observers() {
         return getPlayers().stream()
                 .filter(Player::isObserver)

src/main/java/bwapi/Player.java

@@ -54,8 +54,9 @@ public boolean isAlly(final Player player) {
         return getForce().equals(player.getForce());
     }
 
+    //TODO FIX in 4.3.0
     public boolean isEnemy(final Player player) {
-        return !(player.isObserver() || player.isNeutral() || isAlly(player));
+        return !(player.isNeutral() || isAlly(player));
     }
 
     public boolean isNeutral() {