fix: remove undefined script-related fields from the JSON report

This commit remove the following properties from the JSON report, as these were no longer set by EPUBCheck:
- `scriptSrc`
- `scriptTag`
- `scriptInline`

The report now on says if an item is scripted or not.

See #1515

src/main/java/com/adobe/epubcheck/reporting/ItemMetadata.java

@@ -37,12 +37,6 @@ public class ItemMetadata implements Comparable<ItemMetadata>
   @JsonProperty
   private boolean isScripted;
   @JsonProperty
-  private boolean scriptSrc;
-  @JsonProperty
-  private boolean scriptTag;
-  @JsonProperty
-  private boolean scriptInline;
-  @JsonProperty
   private String renditionLayout;
   @JsonProperty
   private String renditionOrientation;
@@ -167,24 +161,6 @@ public void handleInfo(FeatureEnum feature, String value)
       case SPINE_INDEX:
         this.spineIndex = Integer.parseInt(value.trim());
         break;
-      case SCRIPT:
-        if (value.equals("inline"))
-        {
-          this.scriptInline = true;
-        }
-        else if (value.equals("external"))
-        {
-          this.scriptSrc = true;
-        }
-        else if (value.equals("javascript"))
-        {
-          this.scriptSrc = true;
-        }
-        else if (value.equals("tag"))
-        {
-          this.scriptTag = true;
-        }
-        break;
       case RENDITION_LAYOUT:
         this.renditionLayout = value;
         break;

src/main/java/com/adobe/epubcheck/util/FeatureEnum.java

@@ -74,7 +74,6 @@ public enum FeatureEnum
   RENDITION_ORIENTATION("rendition:orientation"),
   RENDITION_SPREAD("rendition:spread"),
   RESOURCE("resource"),
-  SCRIPT("script"),
   SECTIONS("sections"),
   SHA_256("SHA-256"),
   SIZE("size"),