diff --git a/01.curriculum/01.physics-chemistry-biology/03.niv3/05.math-tools-for-physics/04.differential-operators/04.curl/.gitkeep b/01.curriculum/01.physics-chemistry-biology/03.niv3/05.math-tools-for-physics/04.differential-operators/04.curl/.gitkeep deleted file mode 100644 index e69de29bb..000000000