diff --git a/src/course-outline/data/slice.js b/src/course-outline/data/slice.js
index edb8b1e4a5..bd408c958e 100644
--- a/src/course-outline/data/slice.js
+++ b/src/course-outline/data/slice.js
@@ -121,23 +121,6 @@ const slice = createSlice({
         return section;
       });
     },
-    deleteUnit: (state, { payload }) => {
-      state.sectionsList = state.sectionsList.map((section) => {
-        if (section.id !== payload.sectionId) {
-          return section;
-        }
-        section.childInfo.children = section.childInfo.children.map((subsection) => {
-          if (subsection.id !== payload.subsectionId) {
-            return subsection;
-          }
-          subsection.childInfo.children = subsection.childInfo.children.filter(
-            ({ id }) => id !== payload.itemId,
-          );
-          return subsection;
-        });
-        return section;
-      });
-    },
     duplicateSection: (state, { payload }) => {
       state.sectionsList = state.sectionsList.reduce((result, currentValue) => {
         if (currentValue.id === payload.id) {
@@ -166,7 +149,6 @@ export const {
   setCurrentSubsection,
   deleteSection,
   deleteSubsection,
-  deleteUnit,
   duplicateSection,
   reorderSectionList,
 } = slice.actions;
diff --git a/src/course-outline/data/thunk.js b/src/course-outline/data/thunk.js
index 81996791e2..50909f5a90 100644
--- a/src/course-outline/data/thunk.js
+++ b/src/course-outline/data/thunk.js
@@ -39,7 +39,6 @@ import {
   updateFetchSectionLoadingStatus,
   deleteSection,
   deleteSubsection,
-  deleteUnit,
   duplicateSection,
   reorderSectionList,
 } from './slice';
@@ -265,15 +264,6 @@ export function deleteCourseSubsectionQuery(subsectionId, sectionId) {
   };
 }
 
-export function deleteCourseUnitQuery(unitId, subsectionId, sectionId) {
-  return async (dispatch) => {
-    dispatch(deleteCourseItemQuery(
-      unitId,
-      () => deleteUnit({ itemId: unitId, subsectionId, sectionId }),
-    ));
-  };
-}
-
 /**
  * Generic function to duplicate any course item. See wrapper functions below for specific implementations.
  * @param {string} itemId
diff --git a/src/course-outline/hooks.jsx b/src/course-outline/hooks.jsx
index 1b99460a4a..ec361ce6ce 100644
--- a/src/course-outline/hooks.jsx
+++ b/src/course-outline/hooks.jsx
@@ -24,7 +24,6 @@ import {
   addNewSubsectionQuery,
   deleteCourseSectionQuery,
   deleteCourseSubsectionQuery,
-  deleteCourseUnitQuery,
   editCourseItemQuery,
   duplicateSectionQuery,
   duplicateSubsectionQuery,
@@ -133,11 +132,7 @@ const useCourseOutline = ({ courseId }) => {
       dispatch(deleteCourseSubsectionQuery(currentItem.id, currentSection.id));
       break;
     case COURSE_BLOCK_NAMES.vertical.id:
-      dispatch(deleteCourseUnitQuery(
-        currentItem.id,
-        currentSubsection.id,
-        currentSection.id,
-      ));
+      // delete unit
       break;
     default:
       return;