gnu: Remove python-covdefaults native-input from some packages.

Remove python-covdefaults from [native-inputs] in the following packages as not
required for build/tests/install:

* gnu/packages/python-xyz.scm (python-pyproject-api)
* gnu/packages/version-control.scm (pre-commit)

Change-Id: I97ac72184393a86c5eabf32a558efc95630f07e3
Signed-off-by: Sharlatan Hellseher <sharlatanus@gmail.com>

gnu/packages/python-web.scm

@@ -649,7 +649,6 @@ indexes.")
                              python-typing-extensions))
     (native-inputs
      (list nss-certs-for-test
-           python-covdefaults
            python-hatchling
            python-hatch-vcs
            python-httpx

gnu/packages/python-xyz.scm

@@ -21890,8 +21890,7 @@ database, file, dict stores.  Cachy supports python versions 2.7+ and 3.2+.")
                    ;; This fails because wheel shows up in requirements
                    " and not test_setuptools_get_requires_for_build_wheel"))))
     (native-inputs
-     (list python-covdefaults
-           python-hatch-vcs
+     (list python-hatch-vcs
            python-hatchling
            python-pytest
            python-pytest-cov

gnu/packages/version-control.scm

@@ -2667,7 +2667,6 @@ visualize your public Git repositories on a web interface.")
               (invoke "git" "config" "--global" "user.email" "you@example.com"))))))
     (native-inputs
      (list git-minimal/pinned
-           python-covdefaults
            python-distlib
            python-pytest
            python-pytest-env