- Add comment in macro and remove some now unneeded code

TSRM/tsrm_virtual_cwd.c

@@ -340,9 +340,6 @@ CWD_API int virtual_file_ex(cwd_state *state, const char *path, verify_path_func
         copy_amount = COPY_WHEN_ABSOLUTE(path_copy);
 		is_absolute = 1;
 #ifdef TSRM_WIN32
-	} else if (IS_UNC_PATH(path_copy, path_length)) {
-		copy_amount = 2;
-		is_absolute = 1;
 	} else if (IS_SLASH(path_copy[0])) {
 		copy_amount = 2;
 #endif

TSRM/tsrm_virtual_cwd.h

@@ -53,9 +53,8 @@ typedef unsigned short mode_t;
 #define IS_SLASH_P(c)	(*(c) == '/' || \
         (*(c) == '\\' && !IsDBCSLeadByte(*(c-1))))
 
-/* COPY_WHEN_ABSOLUTE also takes path as argument because netware needs it
- * to account for volume name that is unique to NetWare absolute paths
- */
+/* COPY_WHEN_ABSOLUTE is 2 under Win32 because by chance both regular absolute paths
+   in the file system and UNC paths need copying of two characters */
 #define COPY_WHEN_ABSOLUTE(path) 2
 #define IS_UNC_PATH(path, len) \
 	(len >= 2 && IS_SLASH(path[0]) && IS_SLASH(path[1]))