Bugfixes & cleanup

core/src/mindustry/game/Teams.java

@@ -11,7 +11,6 @@ import mindustry.content.*;
 import mindustry.entities.units.*;
 import mindustry.gen.*;
 import mindustry.type.*;
-import mindustry.world.*;
 import mindustry.world.blocks.payloads.*;
 import mindustry.world.blocks.storage.CoreBlock.*;
 
@@ -27,8 +26,6 @@ public class Teams{
     public Seq<TeamData> active = new Seq<>();
     /** Teams with block or unit presence. */
     public Seq<TeamData> present = new Seq<>(TeamData.class);
-    /** Ores currently being mined. */
-    private IntMap<Unit> mined = new IntMap<>();
 
     public Teams(){
         active.add(get(Team.crux));
@@ -145,21 +142,7 @@ public class Teams{
         }
     }
 
-    /** @return whether this ore is not taken. */
-    public boolean isValidMine(Unit unit, Tile tile){
-        if(multimine) return true;
-        if(tile == null) return false;
-        Unit u = mined.get(tile.pos());
-        return u == unit || u == null;
-    }
-
-    public void registerMined(Tile tile, Unit unit){
-        if(tile == null || unit == null || multimine) return;
-        mined.put(tile.pos(), unit);
-    }
-
     public void updateTeamStats(){
-        mined.clear();
         present.clear();
 
         for(Team team : Team.all){