windows cli colors revision and test case

format.h

@@ -40,15 +40,6 @@
 #include <string>
 #include <sstream>
 
-#ifdef _WIN32
-# define WIN32_LEAN_AND_MEAN
-# ifdef __MINGW32__
-#  include <cstring>
-# endif
-# include <windows.h>
-# undef ERROR
-#endif
-
 #if _SECURE_SCL
 # include <iterator>
 #endif
@@ -2163,21 +2154,7 @@ void report_windows_error(int error_code, StringRef message) FMT_NOEXCEPT(true);
 
 #endif
 
-#ifdef _WIN32
-    enum Color
-    {
-        BLACK = 0,
-        RED = FOREGROUND_RED | FOREGROUND_INTENSITY,
-        GREEN = FOREGROUND_GREEN | FOREGROUND_INTENSITY,
-        YELLOW = FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY,
-        BLUE = FOREGROUND_BLUE | FOREGROUND_INTENSITY,
-        MAGENTA = FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_INTENSITY,
-        CYAN = FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_BLUE,
-        WHITE = FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY
-    };
-#else
-    enum Color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE };
-#endif
+enum Color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE };
 
 /**
   Formats a string and prints it to stdout using ANSI escape sequences