Clean up fretonator file

Author: Salma Alam-Naylor

apps/fretonator-web/src/app/common/fretonator/fretonator.component.ts

@@ -1,20 +1,16 @@
-import { Component, Input, OnInit } from '@angular/core';
+import { Component, Input } from '@angular/core';
 import { ChordMap, FretMap, Mode, Scale } from '../../util/types';
 
 @Component({
   selector: 'app-fretonator',
   templateUrl: './fretonator.component.html',
   styleUrls: ['./fretonator.component.scss'],
 })
-export class FretonatorComponent implements OnInit {
+export class FretonatorComponent {
   @Input() fretMap: FretMap;
   @Input() scale: Scale;
   @Input() intervalMap: [];
   @Input() chordMap: ChordMap;
   @Input() mode: Mode;
   frets = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
-
-  constructor() {}
-
-  ngOnInit(): void {}
 }