Make struct Uppercase have constexpr methods

src/util.cpp

@@ -2,8 +2,6 @@
 
 #include "util.hpp"
 
-#include <algorithm>
-#include <ctype.h>
 #include <stdint.h>
 #include <stdio.h>
 
@@ -61,19 +59,3 @@ char const *printChar(int c) {
 	buf[4] = '\0';
 	return buf;
 }
-
-// FNV-1a hash of an uppercased string
-size_t Uppercase::operator()(std::string const &str) const {
-	size_t hash = 0x811C9DC5;
-	for (char const &c : str) {
-		hash = (hash ^ toupper(c)) * 16777619;
-	}
-	return hash;
-}
-
-// Compare two strings without case-sensitivity (by converting to uppercase)
-bool Uppercase::operator()(std::string const &str1, std::string const &str2) const {
-	return std::equal(RANGE(str1), RANGE(str2), [](char c1, char c2) {
-		return toupper(c1) == toupper(c2);
-	});
-}