Remove "Is Single File Release" property from the track resource class and the database table.

(cherry picked from commit b18cd458e032184e23874d1d23e3e26b24040b11)

src/Lidarr.Api.V1/Tracks/TrackResource.cs

@@ -26,7 +26,6 @@ namespace Lidarr.Api.V1.Tracks
 
         public ArtistResource Artist { get; set; }
         public Ratings Ratings { get; set; }
-        public bool IsSingleFileRelease { get; set; }
 
         // Hiding this so people don't think its usable (only used to set the initial state)
         [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
@@ -59,7 +58,6 @@ namespace Lidarr.Api.V1.Tracks
                 MediumNumber = model.MediumNumber,
                 HasFile = model.HasFile,
                 Ratings = model.Ratings,
-                IsSingleFileRelease = model.IsSingleFileRelease
             };
         }
 

src/NzbDrone.Core/Datastore/Migration/076_add_flac_cue.cs

@@ -8,7 +8,6 @@ namespace NzbDrone.Core.Datastore.Migration
     {
         protected override void MainDbUpgrade()
         {
-            Alter.Table("Tracks").AddColumn("IsSingleFileRelease").AsBoolean().WithDefaultValue(false);
             Alter.Table("TrackFiles").AddColumn("IsSingleFileRelease").AsBoolean().WithDefaultValue(false);
         }
     }