delete useless file

src/main/java/com/example/springdemo/config/DataBaseProperties.java

@@ -1,16 +0,0 @@
-package com.example.springdemo.config;
-
-import lombok.Data;
-import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.stereotype.Component;
-
-@Data
-@Component
-@ConfigurationProperties(prefix = "spring.datasource")
-public class DataBaseProperties {
-    private String driverClassName;
-    private String url;
-    private String username;
-    private String password;
-}
-