Extract usage information into a separate file.

cut.c

@@ -206,20 +206,6 @@ void cut()
 	}
 }
 
-const char cut_usage[] =
-	"cut [OPTION]... [FILE]...\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
-	"\nPrints selected fields from each input FILE to standard output.\n\n"
-	"Options:\n"
-	"\t-b LIST\tOutput only bytes from LIST\n"
-	"\t-c LIST\tOutput only characters from LIST\n"
-	"\t-d CHAR\tUse CHAR instead of tab as the field delimiter\n"
-	"\t-s\tOnly output Lines if the include DELIM\n"
-	"\t-f N\tPrint only these fields\n"
-	"\t-n\tIgnored\n"
-#endif
-	;
-
 int cut_main(int argc, char **argv)
 {
 	int i = 1;