Remove GLTF tag, postprocessing is format independent

code/PostProcessing/SortByPTypeProcess.cpp

@@ -136,7 +136,7 @@ void SortByPTypeProcess::Execute(aiScene *pScene) {
     for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
         aiMesh *const mesh = pScene->mMeshes[i];
         if (mesh->mPrimitiveTypes == 0) {
-            throw DeadlyImportError("GLTF: Mesh with invalid primitive type: ", mesh->mName.C_Str());
+            throw DeadlyImportError("Mesh with invalid primitive type: ", mesh->mName.C_Str());
         }
 
         // if there's just one primitive type in the mesh there's nothing to do for us