diff --git a/packages/legacy-events/__tests__/accumulate-test.internal.js b/packages/legacy-events/__tests__/accumulate-test.internal.js
deleted file mode 100644
index 7038502ffe..0000000000
--- a/packages/legacy-events/__tests__/accumulate-test.internal.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/**
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @emails react-core
- */
-
-'use strict';
-
-let accumulate;
-
-describe('accumulate', () => {
-  beforeEach(() => {
-    accumulate = require('legacy-events/accumulate').default;
-  });
-
-  it('throws if the second item is null', () => {
-    expect(function() {
-      accumulate([], null);
-    }).toThrowError(
-      'accumulate(...): Accumulated items must not be null or undefined.',
-    );
-  });
-
-  it('return second item if first item is null', () => {
-    const a = [];
-    expect(accumulate(null, a)).toBe(a);
-  });
-
-  it('return concatenation of items if first item is an array', () => {
-    const a = ['hello'];
-    const b = 'world';
-    expect(accumulate(a, b)).toEqual(['hello', 'world']);
-  });
-
-  it('return concatenation of items if second item is an array', () => {
-    const a = 'hello';
-    const b = ['world'];
-    expect(accumulate(a, b)).toEqual(['hello', 'world']);
-  });
-
-  it('return an array containing both items if neither item is an array', () => {
-    const a = 'hello';
-    const b = 'world';
-    expect(accumulate(a, b)).toEqual(['hello', 'world']);
-  });
-});
diff --git a/packages/legacy-events/__tests__/accumulateInto-test.internal.js b/packages/legacy-events/__tests__/accumulateInto-test.internal.js
deleted file mode 100644
index 0a1b11d360..0000000000
--- a/packages/legacy-events/__tests__/accumulateInto-test.internal.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/**
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @emails react-core
- */
-
-'use strict';
-
-let accumulateInto;
-
-describe('accumulateInto', () => {
-  beforeEach(() => {
-    accumulateInto = require('legacy-events/accumulateInto').default;
-  });
-
-  it('throws if the second item is null', () => {
-    expect(function() {
-      accumulateInto([], null);
-    }).toThrowError(
-      'accumulateInto(...): Accumulated items must not be null or undefined.',
-    );
-  });
-
-  it('returns the second item if first is null', () => {
-    const a = [];
-    expect(accumulateInto(null, a)).toBe(a);
-  });
-
-  it('merges the second into the first if first item is an array', () => {
-    const a = [1, 2];
-    const b = [3, 4];
-    accumulateInto(a, b);
-    expect(a).toEqual([1, 2, 3, 4]);
-    expect(b).toEqual([3, 4]);
-    const c = [1];
-    accumulateInto(c, 2);
-    expect(c).toEqual([1, 2]);
-  });
-
-  it('returns a new array if first or both items are scalar', () => {
-    const a = [2];
-    expect(accumulateInto(1, a)).toEqual([1, 2]);
-    expect(a).toEqual([2]);
-    expect(accumulateInto(1, 2)).toEqual([1, 2]);
-  });
-});