Simplify tox config

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    {py38,py39,py310,py311,py312,pypy39,pypy310}-{with,without}_coverage
+    py38,py39,py310,py311,py312,pypy39,pypy310
 
 [testenv]
 basepython =
@@ -14,7 +14,7 @@ basepython =
 deps =
     ; use specific versions of testing tools with which this is known to work
     with_coverage: coverage>=5,<6
-    {py38,py39,py310,py311,py312,pypy39,pypy310}: biopython
+    biopython
 setenv =
     PYTHONUNBUFFERED=yes
 allowlist_externals =
@@ -25,11 +25,11 @@ commands =
     ; * if running with coverage, merge the coverage run results from both runs
     ; * for Python 2.6 use the unit2 script since -m unittest2 doesn't work
     ;     (but when running with coverage, coverage run -m unittest2 works)
-    {py38,py39,py310,py311,py312,pypy39,pypy310}-without_coverage: {envpython} -m unittest discover -v tests
-    {py38,py39,py310,py311,py312,pypy39,pypy310}-with_coverage: {envbindir}/coverage run --source=fuzzysearch -m unittest discover tests
+    !with_coverage: {envpython} -m unittest discover tests
+    with_coverage: {envbindir}/coverage run --source=fuzzysearch -m unittest discover tests
     with_coverage: mv .coverage .coverage.with_extensions
     {envpython} -c 'import os; [os.remove(os.path.join(d, fn)) for (d, dns, fns) in os.walk(os.path.join(r"{envsitepackagesdir}", "fuzzysearch")) for fn in fns if fn.endswith((".so", ".pyd"))]'
-    {py38,py39,py310,py311,py312,pypy39,pypy310}-without_coverage: {envpython} -m unittest discover -v tests
-    {py38,py39,py310,py311,py312,pypy39,pypy310}-with_coverage: {envbindir}/coverage run --source=fuzzysearch -m unittest discover tests
+    !with_coverage: {envpython} -m unittest discover tests
+    with_coverage: {envbindir}/coverage run --source=fuzzysearch -m unittest discover tests
     with_coverage: mv .coverage .coverage.no_extensions
     with_coverage: {envbindir}/coverage combine