Don't export methods on already exported classes.

This is always a mistake.

Tests/Module/GenerateExportHeader/lib_shared_and_static/libshared_and_static.h

@@ -8,11 +8,7 @@ class LIBSHARED_AND_STATIC_EXPORT LibsharedAndStatic {
 public:
   int libshared_and_static() const;
 
-#ifdef COMPILER_IS_MSVC
   int libshared_and_static_exported() const;
-#else
-  int LIBSHARED_AND_STATIC_EXPORT libshared_and_static_exported() const;
-#endif
 
   int LIBSHARED_AND_STATIC_DEPRECATED libshared_and_static_deprecated() const;
 

Tests/Module/GenerateExportHeader/libshared/libshared.h

@@ -8,12 +8,7 @@ class LIBSHARED_EXPORT Libshared {
 public:
   int libshared() const;
 
-#ifdef COMPILER_IS_MSVC
-  // Double exporting not possible with MSVC
   int libshared_exported() const;
-#else
-  int LIBSHARED_EXPORT libshared_exported() const;
-#endif
 
   int LIBSHARED_DEPRECATED libshared_deprecated() const;
 

Tests/Module/GenerateExportHeader/libstatic/libstatic.h

@@ -8,7 +8,7 @@ class LIBSTATIC_EXPORT Libstatic {
 public:
   int libstatic() const;
 
-  int LIBSTATIC_EXPORT libstatic_exported() const;
+  int libstatic_exported() const;
 
   int LIBSTATIC_DEPRECATED libstatic_deprecated() const;