Revert "Save scene in URL (#220)" (#234)

This reverts commit db973c61e8.

src/scene/data.ts

@@ -174,22 +174,3 @@ export function saveToLocalStorage(
   localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(elements));
   localStorage.setItem(LOCAL_STORAGE_KEY_STATE, JSON.stringify(state));
 }
-
-export function restoreFromURL(elements: ExcalidrawElement[]) {
-  try {
-    const [savedElements, savedState] = document.location.hash
-      .slice(1)
-      .split(":")
-      .map(atob);
-    return restore(elements, savedElements, savedState);
-  } catch (ex) {
-    return null;
-  }
-}
-
-export function saveToURL(elements: ExcalidrawElement[], state: AppState) {
-  const hash = [JSON.stringify(elements), JSON.stringify(state)]
-    .map(btoa)
-    .join(":");
-  document.location.replace("#" + hash);
-}

src/scene/index.ts

@@ -12,9 +12,7 @@ export {
   loadFromJSON,
   saveAsJSON,
   restoreFromLocalStorage,
-  saveToLocalStorage,
-  restoreFromURL,
-  saveToURL
+  saveToLocalStorage
 } from "./data";
 export { hasBackground, hasStroke, getElementAtPosition } from "./comparisons";
 export { createScene } from "./createScene";