Remove unused PasswordHandler

src/main/java/cc/wdcy/infrastructure/PasswordHandler.java

@@ -1,29 +0,0 @@
-package cc.wdcy.infrastructure;
-
-import org.springframework.security.authentication.encoding.Md5PasswordEncoder;
-
-/**
- * @author Shengzhao Li
- */
-public abstract class PasswordHandler {
-
-
-    /**
-     * Private constructor
-     */
-    private PasswordHandler() {
-    }
-
-    /**
-     * Encrypt  password ,if original password is empty,
-     *
-     * @param originalPassword Original password
-     * @return Encrypted password
-     */
-    public static String encryptPassword(String originalPassword) {
-        Md5PasswordEncoder md5PasswordEncoder = new Md5PasswordEncoder();
-        return md5PasswordEncoder.encodePassword(originalPassword, null);
-    }
-
-
-}