Revert "1. DB 연결 관련 Dao, Vo 자바 파일 생성"

This reverts commit e2e4c47a15.

hospital/src/main/java/DB/BasicDao.java

@@ -1,28 +0,0 @@
-package DB;
-
-import java.sql.Connection;
-import java.sql.DriverManager;
-import java.sql.PreparedStatement;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-
-public class BasicDao {
-    private String driver = "com.mysql.jdbc.Driver";
-    private String url = "jdbc:mysql://@110.35.119.108:3307:hospital_DB";
-    private String user = "mes";
-    private String password = "Mestkdrhdghldmlth1!";
-    protected Connection conn;
-    protected PreparedStatement psmt;
-    protected ResultSet rs;
-
-    public BasicDao() {
-        try {
-            Class.forName(this.driver);
-            this.conn = DriverManager.getConnection(this.url, this.user, this.password);
-            
-        } catch (SQLException | ClassNotFoundException var2) {
-            var2.printStackTrace();
-        }
-
-    }
-}