From 2576f65e6fd2966a54550db0f5ba60d91ee1d6a6 Mon Sep 17 00:00:00 2001
From: George Mamadashvili <georgemamadashvili@gmail.com>
Date: Fri, 22 Aug 2025 13:12:35 +0400
Subject: [PATCH] Core Data: Remove unused reducers

---
 packages/core-data/src/reducer.js      | 42 --------------------------
 packages/core-data/src/test/reducer.js | 22 --------------
 2 files changed, 64 deletions(-)

diff --git a/packages/core-data/src/reducer.js b/packages/core-data/src/reducer.js
index 9748355fc5caf6..75b3ca35130eb7 100644
--- a/packages/core-data/src/reducer.js
+++ b/packages/core-data/src/reducer.js
@@ -19,29 +19,6 @@ import { rootEntitiesConfig, DEFAULT_ENTITY_KEY } from './entities';
 
 /** @typedef {import('./types').AnyFunction} AnyFunction */
 
-/**
- * Reducer managing terms state. Keyed by taxonomy slug, the value is either
- * undefined (if no request has been made for given taxonomy), null (if a
- * request is in-flight for given taxonomy), or the array of terms for the
- * taxonomy.
- *
- * @param {Object} state  Current state.
- * @param {Object} action Dispatched action.
- *
- * @return {Object} Updated state.
- */
-export function terms( state = {}, action ) {
-	switch ( action.type ) {
-		case 'RECEIVE_TERMS':
-			return {
-				...state,
-				[ action.taxonomy ]: action.terms,
-			};
-	}
-
-	return state;
-}
-
 /**
  * Reducer managing authors state. Keyed by id.
  *
@@ -92,23 +69,6 @@ export function currentUser( state = {}, action ) {
 	return state;
 }
 
-/**
- * Reducer managing taxonomies.
- *
- * @param {Object} state  Current state.
- * @param {Object} action Dispatched action.
- *
- * @return {Object} Updated state.
- */
-export function taxonomies( state = [], action ) {
-	switch ( action.type ) {
-		case 'RECEIVE_TAXONOMIES':
-			return action.taxonomies;
-	}
-
-	return state;
-}
-
 /**
  * Reducer managing the current theme.
  *
@@ -648,7 +608,6 @@ export function registeredPostMeta( state = {}, action ) {
 }
 
 export default combineReducers( {
-	terms,
 	users,
 	currentTheme,
 	currentGlobalStylesId,
@@ -656,7 +615,6 @@ export default combineReducers( {
 	themeGlobalStyleVariations,
 	themeBaseGlobalStyles,
 	themeGlobalStyleRevisions,
-	taxonomies,
 	entities,
 	editsReference,
 	undoManager,
diff --git a/packages/core-data/src/test/reducer.js b/packages/core-data/src/test/reducer.js
index d5d5bc5c8692fa..e46aa0cdacc621 100644
--- a/packages/core-data/src/test/reducer.js
+++ b/packages/core-data/src/test/reducer.js
@@ -7,7 +7,6 @@ import deepFreeze from 'deep-freeze';
  * Internal dependencies
  */
 import {
-	terms,
 	entities,
 	embedPreviews,
 	userPermissions,
@@ -15,27 +14,6 @@ import {
 	currentUser,
 } from '../reducer';
 
-describe( 'terms()', () => {
-	it( 'returns an empty object by default', () => {
-		const state = terms( undefined, {} );
-
-		expect( state ).toEqual( {} );
-	} );
-
-	it( 'returns with received terms', () => {
-		const originalState = deepFreeze( {} );
-		const state = terms( originalState, {
-			type: 'RECEIVE_TERMS',
-			taxonomy: 'categories',
-			terms: [ { id: 1 } ],
-		} );
-
-		expect( state ).toEqual( {
-			categories: [ { id: 1 } ],
-		} );
-	} );
-} );
-
 describe( 'entities', () => {
 	// See also unit tests at `queried-data/test/reducer.js`, which are more
 	// thorough in testing the behavior of what is tracked here as the