Remove test deps no longer needed

Author: akchinSTC

setup.cfg

@@ -85,6 +85,7 @@ install_requires =
 airflow =
     pygithub
 airflow-examples =
+    %(airflow)s
     elyra-examples-airflow-catalog
 gitlab =
     python-gitlab
@@ -94,16 +95,14 @@ kfp =
     pyyaml>=5.3.1,<6.0
     typing-extensions>=3.10,<4
 kfp-examples =
+    %(kfp)s
     elyra-examples-kfp-catalog
 kfp-tekton =
     kfp-tekton ~=1.2.0  # See elyra-ai/elyra/pull/2034 for fix pack pinning
 test =
     elyra-examples-airflow-catalog
     elyra-examples-kfp-catalog
-    flake8>=3.5.0
-    flake8-import-order>=0.18.1
     git-python
-    hacking
     importlib-resources
     pytest>=5.4.1
     pytest-console-scripts