cmGlobalVisualStudio8Generator: Remove unused Configure method override

It has not been needed since commit c85367f408 (VS: Compute project
GUIDs deterministically, 2015-06-02, v3.4.0-rc1~496^2)

Source/cmGlobalVisualStudio8Generator.cxx

@@ -225,11 +225,6 @@ std::string cmGlobalVisualStudio8Generator::GetGenerateStampList()
   return "generate.stamp.list";
 }
 
-void cmGlobalVisualStudio8Generator::Configure()
-{
-  this->cmGlobalVisualStudio7Generator::Configure();
-}
-
 bool cmGlobalVisualStudio8Generator::UseFolderProperty() const
 {
   // NOLINTNEXTLINE(bugprone-parent-virtual-call)

Source/cmGlobalVisualStudio8Generator.h

@@ -40,12 +40,6 @@ public:
   cm::optional<std::string> const& GetTargetFrameworkIdentifier() const;
   cm::optional<std::string> const& GetTargetFrameworkTargetsVersion() const;
 
-  /**
-   * Override Configure and Generate to add the build-system check
-   * target.
-   */
-  void Configure() override;
-
   /** Return true if the target project file should have the option
       LinkLibraryDependencies and link to .sln dependencies. */
   bool NeedLinkLibraryDependencies(cmGeneratorTarget* target) override;