Converted some scripts to warps (#1947)

Credits to @Atemo!

npc/battleground/tierra/tierra01.txt

@@ -651,17 +651,8 @@ OnTouch:
 	end;
 }
 
-bat_a01,169,227,0	script	underladd#bat_a01_1	45,1,1,{
-OnTouch_:
-	warp "bat_a01",178,228;
-	end;
-}
-
-bat_a01,208,164,0	script	underladd#bat_a01_2	45,1,1,{
-OnTouch_:
-	warp "bat_a01",200,171;
-	end;
-}
+bat_a01,169,227,0	warp	underladd#bat_a01_1	1,1,bat_a01,178,228
+bat_a01,208,164,0	warp	underladd#bat_a01_2	1,1,bat_a01,200,171
 
 bat_a01,171,309,3	script	Guillaume Camp#flag1	973,{ end; }
 bat_a01,149,310,3	script	Guillaume Camp#flag2	973,{ end; }

npc/battleground/tierra/tierra02.txt

@@ -650,17 +650,8 @@ OnTouch:
 	end;
 }
 
-bat_a02,169,227,0	script	underladd#bat_a02_1	45,1,1,{
-OnTouch_:
-	warp "bat_a02",178,228;
-	end;
-}
-
-bat_a02,208,164,0	script	underladd#bat_a02_2	45,1,1,{
-OnTouch_:
-	warp "bat_a02",200,171;
-	end;
-}
+bat_a02,169,227,0	warp	underladd#bat_a02_1	1,1,bat_a02,178,228
+bat_a02,208,164,0	warp	underladd#bat_a02_2	1,1,bat_a02,200,171
 
 bat_a02,171,309,3	script	Guillaume Camp#flag11	973,{ end; }
 bat_a02,149,310,3	script	Guillaume Camp#flag12	973,{ end; }