Remove duplicate split sequence.

Make blue tib tree more centered on cell (fixes #5744).

Remove obsolete splitblue art.

mods/cnc/rules/trees.yaml

@@ -6,12 +6,16 @@ SPLIT2:
 
 SPLIT3:
 	Inherits: ^TibTree
+	RenderBuilding:
+		Image: split2
 	SeedsResource:
 		ResourceType: Tiberium
 		Interval: 55
 
 SPLITBLUE:
 	Inherits: ^TibTree
+	RenderBuilding:
+		Image: split3
 	SeedsResource:
 		ResourceType: BlueTiberium
 		Interval: 110

mods/cnc/sequences/decorations.yaml

@@ -12,30 +12,17 @@ split2:
 		Offset: 11, -15
 
 split3:
-	make: split2
+	make:
 		Start: 0
 		Length: 30
-		Offset: 11, -15
-	active: split2
+		Offset: 7, -13
+	active:
 		Start: 30
 		Length: 24
-		Offset: 11, -15
-	idle: split2
+		Offset: 7, -13
+	idle:
 		Start: 54
-		Offset: 11, -15
-
-splitblue:
-	make: split3
-		Start: 0
-		Length: 30
-		Offset: 11, -15
-	active: split3
-		Start: 30
-		Length: 24
-		Offset: 11, -15
-	idle: split3
-		Start: 54
-		Offset: 11, -15
+		Offset: 7, -13
 
 rock1:
 	idle: