remove unused files (#48)

Makefile

@@ -57,6 +57,3 @@ before_commit: test format lint
 run_frontend:
 	npm run start:frontend
 
-.PHONY: run_backend
-run_backend:
-	npm run start:backend

package.json

@@ -4,23 +4,22 @@
   "author": "Knocks",
   "license": "MIT",
   "scripts": {
-    "install": "cd packages/frontend && npm install && cd ../backend && npm install",
+    "install": "cd packages/frontend && npm install",
     "dev": "cd packages/frontend && npm run dev",
     "build": "cd packages/backend && npm run build",
-    "clean": "npx rimraf node_modules out && cd packages/frontend && npx rimraf node_modules out  dist coverage && cd ../backend && npx rimraf node_modules out dist coverage",
+    "clean": "npx rimraf node_modules out && cd packages/frontend && npx rimraf node_modules out  dist coverage",
     "deploy:circuit": "cd packages/circuit && make deploy",
-    "test": "cd packages/frontend && npm run test && cd ../backend && npm run test",
-    "test:coverage": "cd packages/frontend && npm run test:coverage && cd ../backend && npm run test:coverage",
-    "test:watch": "cd packages/frontend && npm run test:watch && cd ../backend && npm run test:watch",
-    "lint": "cd packages/frontend && npm run lint && cd ../backend && npm run lint",
-    "lint:fix": "cd packages/frontend && npm run lint:fix && cd ../backend && npm run lint:fix",
+    "test": "cd packages/frontend && npm run test",
+    "test:coverage": "cd packages/frontend && npm run test:coverage",
+    "test:watch": "cd packages/frontend && npm run test:watch",
+    "lint": "cd packages/frontend && npm run lint",
+    "lint:fix": "cd packages/frontend && npm run lint:fix",
     "lint:text": "npx textlint ./README.md",
     "lint-staged": "lint-staged",
-    "format": "cd packages/frontend && npm run format && cd ../backend && npm run format",
-    "format:check": "cd packages/frontend && npm run format:check && cd ../backend && npm run format:check",
+    "format": "cd packages/frontend && npm run format",
+    "format:check": "cd packages/frontend && npm run format:check",
     "prepare": "husky install",
-    "start:frontend": "cd packages/frontend && npm start",
-    "start:backend": "cd packages/backend && npm start"
+    "start:frontend": "cd packages/frontend && npm start"
   },
   "devDependencies": {
     "@tsconfig/react-native": "^3.0.3",