Removed non necessary files

Tools/Gulp/config.json

@@ -111,74 +111,7 @@
             "freeCamera",
             "hemisphericLight"
         ],
-        "minimalGLTFViewer": [
-            "pbrMaterial",
-            "freeCamera",
-            "arcRotateCamera",
-            "hemisphericLight",
-            "pointLight",
-            "directionalLight",
-            "spotLight",
-            "animations",
-            "actions",
-            "sprites",
-            "picking",
-            "collisions",
-            "particles",
-            "solidParticles",
-            "additionalMeshes",
-            "meshBuilder",
-            "meshCompression",
-            "audio",
-            "additionalTextures",
-            "shadows",
-            "loader",
-            "userData",
-            "offline",
-            "fresnel",
-            "multiMaterial",
-            "touchCamera",
-            "procedural",
-            "gamepad",
-            "additionalCameras",
-            "postProcesses",
-            "renderingPipeline",
-            "additionalRenderingPipeline",
-            "defaultRenderingPipeline",
-            "depthRenderer",
-            "geometryBufferRenderer",
-            "additionalPostProcesses",
-            "additionalPostProcess_blur",
-            "additionalPostProcess_fxaa",
-            "additionalPostProcess_imageProcessing",
-            "bones",
-            "hdr",
-            "polygonMesh",
-            "csg",
-            "lensFlares",
-            "physics",
-            "textureFormats",
-            "debug",
-            "morphTargets",
-            "octrees",
-            "vr",
-            "virtualJoystick",
-            "optimizations",
-            "highlights",
-            "assetsManager",
-            "serialization",
-            "probes",
-            "layer",
-            "textureTools",
-            "cameraBehaviors",
-            "instrumentation",
-            "backgroundMaterial",
-            "environmentHelper",
-            "materialsLibrary/babylon.gridMaterial.js",
-            "loaders/babylon.glTFFileLoader.js"
-        ],
         "distributed": [
-            "minimalGLTFViewer"
         ]
     },
     "workloads": {