fix: fix compile error in gcc.

- remove __attribute__(format) checker for UTF8 char type printf becuase it forcely require the type of format string is const char*, rather than const char8_t*, and I can not use any switches to remove this.
- delete useless macro and header in clap manual.

src/yycc/carton/clap/manual.cpp

@@ -2,13 +2,11 @@
 #include "../termcolor.hpp"
 #include "../../patch/stream.hpp"
 #include "../../patch/format.hpp"
-#include "../../string/op.hpp"
 
 #define CLAP ::yycc::carton::clap
 #define TABULATE ::yycc::carton::tabulate
 #define TERMCOLOR ::yycc::carton::termcolor
 #define FORMAT ::yycc::patch::format
-#define OP ::yycc::carton::op
 
 using namespace ::yycc::patch::stream;