Remove deprecated license classifier

See https://peps.python.org/pep-0639/#deprecate-license-classifiers.

Author: anishathalye

pyproject.toml

@@ -14,7 +14,6 @@ requires-python = ">=3.7"
 keywords = ["computer_vision", "cv", "image_data", "issue_detection", "data_quality", "image_quality", "machine_learning", "data_cleaning", "image_deduplication"]
 license = { file = "LICENSE" }
 classifiers = [
-    "License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",