Core test commands are for CI only.

--- tqdm-4.67.0/tox.ini.orig
+++ tqdm-4.67.0/tox.ini
@@ -45,7 +45,6 @@
     keras: keras
 commands=
     pytest --cov=tqdm --cov-report=xml --cov-report=term --cov-append -k "not perf"
-    {[core]commands}
 allowlist_externals=codacy
 
 # no cython/numpy/pandas