General: Remove unused macros

These aren't used anywhere, so they can be removed.

include/athena/FileReader.hpp

@@ -71,10 +71,3 @@ protected:
   bool m_globalErr;
 };
 } // namespace athena::io
-
-#ifndef FILEREADER_BASE
-#define FILEREADER_BASE()                                                                                              \
-private:                                                                                                               \
-  typedef athena::io::FileReader base
-
-#endif // FILEREADER_BASE

include/athena/FileWriter.hpp

@@ -109,10 +109,3 @@ public:
   ~TransactionalFileWriter() override { flush(); }
 };
 } // namespace athena::io
-
-#ifndef FILEWRITER_BASE
-#define FILEWRITER_BASE()                                                                                              \
-private:                                                                                                               \
-  typedef athena::io::FileWriter base;
-
-#endif // FILEWRITER_BASE

include/athena/PHYSFSFileReader.hpp

@@ -48,8 +48,5 @@ private:
 };
 } // namespace athena::io
 
-#ifndef PHYSFSFILEREADER_BASE
-#define PHYSFSFILEREADER_BASE() typedef athena::io::PHYSFSFileReader base
-#endif
 #endif // PHYSFSSTREAM_HPP
 #endif // ATHENA_ENABLE_PHYSFS