revert these wrong files

Samples/UIWidgetsSamples_2019_4/Packages/manifest.json

     "com.unity.collab-proxy": "1.2.16",
     "com.unity.ide.rider": "1.1.4",
     "com.unity.ide.vscode": "1.2.1",
-    "com.unity.test-framework": "1.1.16",
+    "com.unity.uiwidgets": "file:../../../com.unity.uiwidgets",
+    "com.unity.test-framework": "1.1.14",
-    "com.unity.uiwidgets": "file:../../../com.unity.uiwidgets",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.androidjni": "1.0.0",
     "com.unity.modules.animation": "1.0.0",

Samples/UIWidgetsSamples_2019_4/ProjectSettings/ProjectVersion.txt

-m_EditorVersion: 2019.4.10f1
-m_EditorVersionWithRevision: 2019.4.10f1 (a819905b7a01)
+m_EditorVersion: 2019.4.2f1
+m_EditorVersionWithRevision: 2019.4.2f1 (f997fc5c673b)