remove non-3.6 Python version classifiers in setup.py

Author: mattsb42-aws

decrypt_oracle/setup.py

@@ -45,13 +45,7 @@ def get_requirements():
         "Natural Language :: English",
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.4",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: Implementation :: CPython",
         "Topic :: Security",
         "Topic :: Security :: Cryptography",