Removed unused packages to fix security warnings.

frontend/package.json

@@ -29,7 +29,7 @@
     "angularx-qrcode": "^1.7.0-beta.5",
     "bootstrap": "^4.3.1",
     "chartist": "^0.11.2",
-    "core-js": "^3.3.3",
+    "core-js": "^3.4.1",
     "ng-chartist": "^2.0.0-beta.1",
     "rxjs": "^6.5.3",
     "tslib": "^1.9.0",
@@ -41,18 +41,8 @@
     "@angular/compiler-cli": "^8.2.11",
     "@angular/language-service": "^8.2.11",
     "@types/chartist": "^0.9.46",
-    "@types/jasmine": "^2.8.16",
-    "@types/jasminewd2": "^2.0.6",
     "@types/node": "~8.9.4",
     "codelyzer": "~5.1.0",
-    "jasmine-core": "~2.99.1",
-    "jasmine-spec-reporter": "~4.2.1",
-    "karma": "~1.7.1",
-    "karma-chrome-launcher": "~2.2.0",
-    "karma-coverage-istanbul-reporter": "~1.4.2",
-    "karma-jasmine": "~1.1.1",
-    "karma-jasmine-html-reporter": "^0.2.2",
-    "protractor": "~5.3.0",
     "ts-node": "~7.0.0",
     "tslint": "~5.15.0",
     "typescript": "~3.4.3"