diff --git a/src/renderers/dom/client/__tests__/ReactMount-test.js b/src/renderers/dom/client/__tests__/ReactMount-test.js
index 6328a06092..4e5915c034 100644
--- a/src/renderers/dom/client/__tests__/ReactMount-test.js
+++ b/src/renderers/dom/client/__tests__/ReactMount-test.js
@@ -196,31 +196,6 @@ describe('ReactMount', function() {
     });
   }
 
-  it('warns when using two copies of React before throwing', function() {
-    jest.resetModuleRegistry();
-    var RD1 = require('ReactDOM');
-    jest.resetModuleRegistry();
-    var RD2 = require('ReactDOM');
-
-    var X = React.createClass({
-      render: function() {
-        return <div />;
-      },
-    });
-
-    var container = document.createElement('div');
-    spyOn(console, 'error');
-    var component = RD1.render(<X />, container);
-    expect(console.error.argsForCall.length).toBe(0);
-
-    // This fails but logs a warning first
-    expect(function() {
-      RD2.findDOMNode(component);
-    }).toThrow();
-    expect(console.error.argsForCall.length).toBe(1);
-    expect(console.error.argsForCall[0][0]).toContain('two copies of React');
-  });
-
   it('should warn if render removes React-rendered children', function() {
     var container = document.createElement('container');
     var Component = React.createClass({
diff --git a/src/renderers/shared/reconciler/__tests__/ReactMultiChild-test.js b/src/renderers/shared/reconciler/__tests__/ReactMultiChild-test.js
index fbe46a69f2..f06e242f2e 100644
--- a/src/renderers/shared/reconciler/__tests__/ReactMultiChild-test.js
+++ b/src/renderers/shared/reconciler/__tests__/ReactMultiChild-test.js
@@ -149,62 +149,4 @@ describe('ReactMultiChild', function() {
       expect(mockUnmount.mock.calls.length).toBe(1);
     });
   });
-
-  describe('innerHTML', function() {
-    var setInnerHTML;
-
-    // Only run this suite if `Element.prototype.innerHTML` can be spied on.
-    var innerHTMLDescriptor = Object.getOwnPropertyDescriptor(
-      Element.prototype,
-      'innerHTML'
-    );
-    if (!innerHTMLDescriptor) {
-      return;
-    }
-
-    beforeEach(function() {
-      var ReactDOMFeatureFlags = require('ReactDOMFeatureFlags');
-      ReactDOMFeatureFlags.useCreateElement = false;
-
-      Object.defineProperty(Element.prototype, 'innerHTML', {
-        set: setInnerHTML = jasmine.createSpy().andCallFake(
-          innerHTMLDescriptor.set
-        ),
-      });
-    });
-
-    it('should only set `innerHTML` once on update', function() {
-      var container = document.createElement('div');
-
-      ReactDOM.render(
-        <div>
-          <p><span /></p>
-          <p><span /></p>
-          <p><span /></p>
-        </div>,
-        container
-      );
-      // Warm the cache used by `getMarkupWrap`.
-      ReactDOM.render(
-        <div>
-          <p><span /><span /></p>
-          <p><span /><span /></p>
-          <p><span /><span /></p>
-        </div>,
-        container
-      );
-      expect(setInnerHTML).toHaveBeenCalled();
-      var callCountOnMount = setInnerHTML.calls.length;
-
-      ReactDOM.render(
-        <div>
-          <p><span /><span /><span /></p>
-          <p><span /><span /><span /></p>
-          <p><span /><span /><span /></p>
-        </div>,
-        container
-      );
-      expect(setInnerHTML.calls.length).toBe(callCountOnMount + 1);
-    });
-  });
 });