Remove our GenerateCodeBase constant

It's always supposed to be true at this point, and only half the things
were looking at it in the first place.

src/VisualStudio/Setup/AssemblyRedirects.cs

@@ -29,4 +29,4 @@
     OldVersionUpperBound = "1.0.99.0",
     NewVersion = "1.1.0.0",
     PublicKeyToken = "b03f5f7f11d50a3a",
-    GenerateCodeBase = ProvideRoslynBindingRedirectionAttribute.GenerateCodeBase)]
\ No newline at end of file
+    GenerateCodeBase = true)]
\ No newline at end of file

src/VisualStudio/Setup/ProvideRoslynBindingRedirection.cs

@@ -15,9 +15,6 @@ internal sealed class ProvideRoslynBindingRedirectionAttribute : RegistrationAtt
     {
         private readonly ProvideBindingRedirectionAttribute _redirectionAttribute;
 
-        // We should include CodeBase attributes so they always are loaded from this extension
-        public const bool GenerateCodeBase = true;
-
         public ProvideRoslynBindingRedirectionAttribute(string fileName)
         {
             // ProvideBindingRedirectionAttribute is sealed, so we can't inherit from it to provide defaults.
@@ -28,7 +25,6 @@ public ProvideRoslynBindingRedirectionAttribute(string fileName)
                 PublicKeyToken = "31BF3856AD364E35",
                 OldVersionLowerBound = "0.7.0.0",
                 OldVersionUpperBound = "1.1.0.0",
-                GenerateCodeBase = GenerateCodeBase,
                 CodeBase = fileName,
             };
         }