Revert "GEODE-5634: Xunit modules upgraded to latest"

This reverts commit dc0a041d7c01d5cbe5d265fda1f65f7b158217ad.
diff --git a/clicache/integration-test2/packages.config b/clicache/integration-test2/packages.config
index 7b91adb..b020c2f 100644
--- a/clicache/integration-test2/packages.config
+++ b/clicache/integration-test2/packages.config
@@ -17,13 +17,13 @@
 -->
 <packages>
   <package id="Microsoft.VisualStudio.TestPlatform" version="14.0.0.1" targetFramework="net452" />
-  <package id="xunit" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.abstractions" version="2.0.2" targetFramework="net35" />
-  <package id="xunit.analyzers" version="0.10.0" targetFramework="net452" />
-  <package id="xunit.assert" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.core" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.extensibility.core" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.extensibility.execution" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.runner.console" version="2.4.0" targetFramework="net452" developmentDependency="true" />
-  <package id="xunit.runner.visualstudio" version="2.4.0" targetFramework="net452" developmentDependency="true" />
+  <package id="xunit" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.abstractions" version="2.0.1" targetFramework="net35" />
+  <package id="xunit.analyzers" version="0.8.0" targetFramework="net452" />
+  <package id="xunit.assert" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.core" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.extensibility.core" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.extensibility.execution" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.runner.console" version="2.3.1" targetFramework="net452" developmentDependency="true" />
+  <package id="xunit.runner.visualstudio" version="2.3.1" targetFramework="net452" developmentDependency="true" />
 </packages>
diff --git a/clicache/test2/packages.config b/clicache/test2/packages.config
index 7e8ca2f..428e078 100644
--- a/clicache/test2/packages.config
+++ b/clicache/test2/packages.config
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.VisualStudio.TestPlatform" version="14.0.0.1" targetFramework="net452" />
-  <package id="xunit" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.abstractions" version="2.0.2" targetFramework="net35" />
-  <package id="xunit.analyzers" version="0.10.0" targetFramework="net452" />
-  <package id="xunit.assert" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.core" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.extensibility.core" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.extensibility.execution" version="2.4.0" targetFramework="net452" />
-  <package id="xunit.runner.console" version="2.4.0" targetFramework="net452" developmentDependency="true" />
-  <package id="xunit.runner.visualstudio" version="2.4.0" targetFramework="net452" developmentDependency="true" />
-</packages>
+  <package id="xunit" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.abstractions" version="2.0.1" targetFramework="net35" />
+  <package id="xunit.analyzers" version="0.8.0" targetFramework="net452" />
+  <package id="xunit.assert" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.core" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.extensibility.core" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.extensibility.execution" version="2.3.1" targetFramework="net452" />
+  <package id="xunit.runner.console" version="2.3.1" targetFramework="net452" developmentDependency="true" />
+  <package id="xunit.runner.visualstudio" version="2.3.1" targetFramework="net452" developmentDependency="true" />
+</packages>
\ No newline at end of file