Revert "Feature: Multi Point Arrows (#338)" (#634)

This reverts commit 16263e942b.

src/element/newElement.ts

@@ -1,7 +1,6 @@
 import { randomSeed } from "roughjs/bin/math";
 import nanoid from "nanoid";
 import { Drawable } from "roughjs/bin/core";
-import { Point } from "roughjs/bin/geometry";
 
 import { ExcalidrawElement, ExcalidrawTextElement } from "../element/types";
 import { measureText } from "../utils";
@@ -35,7 +34,6 @@ export function newElement(
     isSelected: false,
     seed: randomSeed(),
     shape: null as Drawable | Drawable[] | null,
-    points: [] as Point[],
   };
   return element;
 }