Removed relation that was already implemented in the super

ref #11

src/models/TrackScan.ts

@@ -1,4 +1,4 @@
-import { PrimaryGeneratedColumn, Column } from "typeorm";
+import { PrimaryGeneratedColumn, Column, ManyToOne } from "typeorm";
 import {
   IsBoolean,
   IsDateString,
@@ -25,14 +25,6 @@ export class TrackScan extends Scan {
   @IsInt()
   id: number;
 
-  /**
-   * The associated runner.
-   */
-  @Column()
-  @IsNotEmpty()
-  //TODO: Relationship
-  runner: Runner;
-
   /**
    * The associated track.
    */