1 files changed, 0 insertions, 76 deletions
diff --git a/app/assets/javascripts/diffs/utils/discussions.js b/app/assets/javascripts/diffs/utils/discussions.js
deleted file mode 100644
index c404705d209..00000000000
--- a/app/assets/javascripts/diffs/utils/discussions.js
+++ /dev/null
@@ -1,76 +0,0 @@
-function normalize(processable) {
-  const { entry } = processable;
-  const offset = entry.rootBounds.bottom - entry.boundingClientRect.top;
-  const direction =
-    offset < 0 ? 'Up' : 'Down'; /* eslint-disable-line @gitlab/require-i18n-strings */
-
-  return {
-    ...processable,
-    entry: {
-      time: entry.time,
-      type: entry.isIntersecting ? 'intersection' : `scroll${direction}`,
-    },
-  };
-}
-
-function sort({ entry: alpha }, { entry: beta }) {
-  const diff = alpha.time - beta.time;
-  let order = 0;
-
-  if (diff < 0) {
-    order = -1;
-  } else if (diff > 0) {
-    order = 1;
-  } else if (alpha.type === 'intersection' && beta.type === 'scrollUp') {
-    order = 2;
-  } else if (alpha.type === 'scrollUp' && beta.type === 'intersection') {
-    order = -2;
-  }
-
-  return order;
-}
-
-function filter(entry) {
-  return entry.type !== 'scrollDown';
-}
-
-export function discussionIntersectionObserverHandlerFactory() {
-  let unprocessed = [];
-  let timer = null;
-
-  return (processable) => {
-    unprocessed.push(processable);
-
-    if (timer) {
-      clearTimeout(timer);
-    }
-
-    timer = setTimeout(() => {
-      unprocessed
-        .map(normalize)
-        .filter(filter)
-        .sort(sort)
-        .forEach((discussionObservationContainer) => {
-          const {
-            entry: { type },
-            currentDiscussion,
-            isFirstUnresolved,
-            isDiffsPage,
-            functions: { setCurrentDiscussionId, getPreviousUnresolvedDiscussionId },
-          } = discussionObservationContainer;
-
-          if (type === 'intersection') {
-            setCurrentDiscussionId(currentDiscussion.id);
-          } else if (type === 'scrollUp') {
-            setCurrentDiscussionId(
-              isFirstUnresolved
-                ? null
-                : getPreviousUnresolvedDiscussionId(currentDiscussion.id, isDiffsPage),
-            );
-          }
-        });
-
-      unprocessed = [];
-    }, 0);
-  };
-}