Update utObjImportExport.cpp

Unittest: Make obj-exporter test depending on export state.

test/unit/utObjImportExport.cpp

@@ -234,15 +234,13 @@ TEST_F( utObjImportExport, issue1111_no_mat_name_Test ) {
     EXPECT_NE( nullptr, scene );
 }
 
-#ifndef ASSIMP_BUILD_NO_EXPORT
-
 TEST_F( utObjImportExport, issue809_vertex_color_Test ) {
     ::Assimp::Importer importer;
     const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/OBJ/cube_with_vertexcolors.obj", 0 );
     EXPECT_NE( nullptr, scene );
 
+#ifndef ASSIMP_BUILD_NO_EXPORT
     ::Assimp::Exporter exporter;
     EXPECT_EQ( aiReturn_SUCCESS, exporter.Export( scene, "obj", ASSIMP_TEST_MODELS_DIR "/OBJ/test.obj" ) );
-}
-
 #endif // ASSIMP_BUILD_NO_EXPORT
+}