MNT update setup.py

Author: glemaitre

setup.py

@@ -49,7 +49,6 @@
  "Operating System :: POSIX",
  "Operating System :: Unix",
  "Operating System :: MacOS",
- "Programming Language :: Python :: 3.7",
  "Programming Language :: Python :: 3.8",
  "Programming Language :: Python :: 3.9",
  "Programming Language :: Python :: 3.10",