Fix anim reference

src/main/resources/assets/chisel/textures/blocks/animations/purplePulse.png.mcmeta

@@ -1,18 +1,5 @@
 {
   "animation": {
-      "frametime": 4,
-	 "frames": [
-	 0,
-	 1,
-	 2,
-	 3,
-	 4,
-	 5,
-	 4,
-	 3,
-	 2,
-	 1,
-	 0,
-	 ]
+      "frametime": 2
   }
 }