Delete unuseful html pages

src/main/java/site/easystartup/web/controller/MainController.java

@@ -1,17 +0,0 @@
-package site.easystartup.web.controller;
-
-import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.GetMapping;
-
-@Controller
-public class MainController {
-    @GetMapping("/")
-    public String home() {
-        return "home";
-    }
-
-    @GetMapping("/about")
-    public String about() {
-        return "about";
-    }
-}