Update pyproject.toml

pyproject.toml

@@ -8,7 +8,6 @@ dynamic = ["version", "dependencies"]
 requires-python = '>=3.6'
 
 license = 'BSD-3-Clause'
-license-files = ['license.txt']
 readme = {file = "README.rst", content-type = "text/x-rst"}
 description = 'A scikit-learn compatible package for multimodal Classifiers'
 authors = [