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diff --git a/libs/assimp/test/unit/utScenePreprocessor.cpp b/libs/assimp/test/unit/utScenePreprocessor.cpp
deleted file mode 100644
index 45d8a36..0000000
--- a/libs/assimp/test/unit/utScenePreprocessor.cpp
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
----------------------------------------------------------------------------
-Open Asset Import Library (assimp)
----------------------------------------------------------------------------
-
-Copyright (c) 2006-2022, assimp team
-
-All rights reserved.
-
-Redistribution and use of this software in source and binary forms,
-with or without modification, are permitted provided that the following
-conditions are met:
-
-* Redistributions of source code must retain the above
-copyright notice, this list of conditions and the
-following disclaimer.
-
-* Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the
-following disclaimer in the documentation and/or other
-materials provided with the distribution.
-
-* Neither the name of the assimp team, nor the names of its
-contributors may be used to endorse or promote products
-derived from this software without specific prior
-written permission of the assimp team.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----------------------------------------------------------------------------
-*/
-#include "UnitTestPCH.h"
-
-#include "Common/ScenePreprocessor.h"
-#include <assimp/mesh.h>
-#include <assimp/scene.h>
-#include <assimp/Importer.hpp>
-
-using namespace std;
-using namespace Assimp;
-
-class ScenePreprocessorTest : public ::testing::Test {
-public:
-    ScenePreprocessorTest() :
-            Test(), mScenePreprocessor(nullptr), mScene(nullptr) {
-        // empty
-    }
-
-protected:
-    virtual void SetUp();
-    virtual void TearDown();
-
-protected:
-    void CheckIfOnly(aiMesh *p, unsigned int num, unsigned flag);
-    void ProcessAnimation(aiAnimation *anim) { mScenePreprocessor->ProcessAnimation(anim); }
-    void ProcessMesh(aiMesh *mesh) { mScenePreprocessor->ProcessMesh(mesh); }
-
-private:
-    ScenePreprocessor *mScenePreprocessor;
-    aiScene *mScene;
-};
-
-// ------------------------------------------------------------------------------------------------
-void ScenePreprocessorTest::SetUp() {
-    // setup a dummy scene with a single node
-    mScene = new aiScene();
-    mScene->mRootNode = new aiNode();
-    mScene->mRootNode->mName.Set("<test>");
-
-    // add some translation
-    mScene->mRootNode->mTransformation.a4 = 1.f;
-    mScene->mRootNode->mTransformation.b4 = 2.f;
-    mScene->mRootNode->mTransformation.c4 = 3.f;
-
-    // and allocate a ScenePreprocessor to operate on the scene
-    mScenePreprocessor = new ScenePreprocessor(mScene);
-}
-
-// ------------------------------------------------------------------------------------------------
-void ScenePreprocessorTest::TearDown() {
-    delete mScenePreprocessor;
-    delete mScene;
-}
-
-// ------------------------------------------------------------------------------------------------
-// Check whether ProcessMesh() returns flag for a mesh that consist of primitives with num indices
-void ScenePreprocessorTest::CheckIfOnly(aiMesh *p, unsigned int num, unsigned int flag) {
-    // Triangles only
-    for (unsigned i = 0; i < p->mNumFaces; ++i) {
-        p->mFaces[i].mNumIndices = num;
-    }
-    mScenePreprocessor->ProcessMesh(p);
-    EXPECT_EQ(flag, p->mPrimitiveTypes);
-    p->mPrimitiveTypes = 0;
-}
-
-// ------------------------------------------------------------------------------------------------
-// Check whether a mesh is preprocessed correctly. Case 1: The mesh needs preprocessing
-TEST_F(ScenePreprocessorTest, testMeshPreprocessingPos) {
-    aiMesh *p = new aiMesh;
-    p->mNumFaces = 100;
-    p->mFaces = new aiFace[p->mNumFaces];
-
-    p->mTextureCoords[0] = new aiVector3D[10];
-    p->mNumUVComponents[0] = 0;
-    p->mNumUVComponents[1] = 0;
-
-    CheckIfOnly(p, 1, aiPrimitiveType_POINT);
-    CheckIfOnly(p, 2, aiPrimitiveType_LINE);
-    CheckIfOnly(p, 3, aiPrimitiveType_TRIANGLE);
-    CheckIfOnly(p, 4, aiPrimitiveType_POLYGON);
-    CheckIfOnly(p, 1249, aiPrimitiveType_POLYGON);
-
-    // Polygons and triangles mixed
-    unsigned i;
-    for (i = 0; i < p->mNumFaces / 2; ++i) {
-        p->mFaces[i].mNumIndices = 3;
-    }
-    for (; i < p->mNumFaces - p->mNumFaces / 4; ++i) {
-        p->mFaces[i].mNumIndices = 4;
-    }
-    for (; i < p->mNumFaces; ++i) {
-        p->mFaces[i].mNumIndices = 10;
-    }
-    ProcessMesh(p);
-    EXPECT_EQ(static_cast<unsigned int>(aiPrimitiveType_TRIANGLE | aiPrimitiveType_POLYGON),
-            p->mPrimitiveTypes);
-    EXPECT_EQ(2U, p->mNumUVComponents[0]);
-    EXPECT_EQ(0U, p->mNumUVComponents[1]);
-    delete p;
-}
-
-// ------------------------------------------------------------------------------------------------
-// Check whether a mesh is preprocessed correctly. Case 1: The mesh doesn't need preprocessing
-TEST_F(ScenePreprocessorTest, testMeshPreprocessingNeg) {
-    aiMesh *p = new aiMesh;
-    p->mPrimitiveTypes = aiPrimitiveType_TRIANGLE | aiPrimitiveType_POLYGON;
-    ProcessMesh(p);
-
-    // should be unmodified
-    EXPECT_EQ(static_cast<unsigned int>(aiPrimitiveType_TRIANGLE | aiPrimitiveType_POLYGON),
-            p->mPrimitiveTypes);
-
-    delete p;
-}
-
-// ------------------------------------------------------------------------------------------------
-// Make a dummy animation with a single channel, '<test>'
-aiAnimation *MakeDummyAnimation() {
-    aiAnimation *p = new aiAnimation();
-    p->mNumChannels = 1;
-    p->mChannels = new aiNodeAnim *[1];
-    aiNodeAnim *anim = p->mChannels[0] = new aiNodeAnim();
-    anim->mNodeName.Set("<test>");
-    return p;
-}
-
-// ------------------------------------------------------------------------------------------------
-// Check whether an anim is preprocessed correctly. Case 1: The anim needs preprocessing
-TEST_F(ScenePreprocessorTest, testAnimationPreprocessingPos) {
-    aiAnimation *p = MakeDummyAnimation();
-    aiNodeAnim *anim = p->mChannels[0];
-
-    // we don't set the animation duration, but generate scaling channels
-    anim->mNumScalingKeys = 10;
-    anim->mScalingKeys = new aiVectorKey[10];
-
-    for (unsigned int i = 0; i < 10; ++i) {
-        anim->mScalingKeys[i].mTime = i;
-        anim->mScalingKeys[i].mValue = aiVector3D((float)i);
-    }
-    ProcessAnimation(p);
-
-    // we should now have a proper duration
-    EXPECT_NEAR(p->mDuration, 9., 0.005);
-
-    // ... one scaling key
-    EXPECT_TRUE(anim->mNumPositionKeys == 1 &&
-                anim->mPositionKeys &&
-                anim->mPositionKeys[0].mTime == 0.0 &&
-                anim->mPositionKeys[0].mValue == aiVector3D(1.f, 2.f, 3.f));
-
-    // ... and one rotation key
-    EXPECT_TRUE(anim->mNumRotationKeys == 1 && anim->mRotationKeys &&
-                anim->mRotationKeys[0].mTime == 0.0);
-
-    delete p;
-}