Fixing up binding redirects

Author: fabiocav

src/WebJobs.Script.WebHost/Web.config

@@ -181,7 +181,7 @@
       <dependentAssembly>
         <assemblyIdentity name="System.IO.Compression" publicKeyToken="b77a5c561934e089" culture="neutral" />
         <!--Explicitly redirecting back to 4.0.0. See https://github.com/dotnet/corefx/issues/15693 for details-->
-        <bindingRedirect oldVersion="0.0.0.0-4.1.2.0" newVersion="4.1.2.0" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.2.0" newVersion="4.0.0.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="System.Security.Cryptography.Primitives" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
@@ -202,7 +202,7 @@
       <dependentAssembly>
         <assemblyIdentity name="System.Net.Http" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
         <!--Explicitly redirecting back to 4.0.0. See https://github.com/dotnet/corefx/issues/16805 for details-->
-        <bindingRedirect oldVersion="0.0.0.0-4.1.1.0" newVersion="4.1.1.0" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.1.0" newVersion="4.0.0.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="Microsoft.Extensions.Logging.Abstractions" publicKeyToken="adb9793829ddae60" culture="neutral" />