Revert "Add: banned word DB"

This reverts commit 90c8ffa3a6.

src/web/server/maestro/check_id.php

@@ -7,13 +7,6 @@ include "./../setup/connect_db.php";
 $maestro_name = $_POST["maestro_name"];
 
 
-$banned_word = banned_maestro_name($maestro_name);
-if($banned_word !== null) {
-	set_error_message($maestro_name." : 금칙어로 등록된 이름입니다. 다른 아이디로 입력해주세요.");
-	send_result_fail();
-	exit;
-}
-
 $maestro_id = get_maestro_id($maestro_name);
 if($maestro_id !== null) {
 	set_error_code("registered_name");
@@ -27,25 +20,6 @@ exit;
 
 
 
-function banned_maestro_name($maestroName) {
-	global $db_conn;
-
-	$query = "
-		SELECT Word
-		FROM banned_word
-		WHERE Word = ?
-	";
-	$stmt = $db_conn->prepare($query);
-	$stmt->bind_param("s", $maestroName);
-	$stmt->execute();
-	$stmt->bind_result($maestroID);
-	// while($stmt->fetch())
-	$stmt->fetch();
-	$stmt->close();
-
-	return $maestroID;
-}
-
 function get_maestro_id($maestro_name) {
 	global $db_conn;