Remove unused imports

Author: javagl

src/validation/gltf/GltfExtensionIssues.ts

@@ -1,8 +1,4 @@
 import { ValidationIssue } from "../ValidationIssue";
-import { GltfData } from "./GltfData";
-
-import { ValidationIssues } from "../../issues/ValidationIssues";
-import { ValidationIssueSeverity } from "../ValidationIssueSeverity";
 
 /**
  * Functions for implementing filters on lists of validation issues,

src/validation/gltf/GltfExtensionValidators.ts

@@ -9,7 +9,6 @@ import { MaxarNonvisualGeometryValidator } from "./nonvisualGeometry/MaxarNonvis
 import { NgaGpmLocalValidator } from "./gpmLocal/NgaGpmLocalValidator";
 import { MaxarImageOrthoValidator } from "./imageOrtho/MaxarImageOrthoValidator";
 import { KhrLightsPunctualValidator } from "./lightsPunctual/KhrLightsPunctualValidator";
-import { GltfExtensionIssues } from "./GltfExtensionIssues";
 import { GltfExtensionIssuesKhrTextureBasisu } from "./GltfExtensionIssuesKhrTextureBasisu";
 import { ExtStructuralMetadataIssues } from "./structuralMetadata/ExtStructuralMetadataIssues";
 import { ExtMeshFeaturesIssues } from "./meshFeatures/ExtMeshFeaturesIssues";