gnu: python-cooler: Drop phase 'fix-pytest-config.

* gnu/packages/bioinformatics.scm (python-cooler)[arguments]<#:phases>:
Drop phase 'fix-pytest-config.

Change-Id: Iddad5557655691c11ded0f0a20b1f23b7791b896
Signed-off-by: Sharlatan Hellseher <sharlatanus@gmail.com>

gnu/packages/bioinformatics.scm

@@ -20366,13 +20366,7 @@ fasta subsequences.")
               " and not test_roundtrip"
               ;; This test depends on ipytree, which contains a lot of
               ;; minified JavaScript.
-              " and not test_print_trees"))
-      #:phases
-      #~(modify-phases %standard-phases
-          (add-after 'unpack 'fix-pytest-config
-            (lambda _
-              (substitute* "pyproject.toml"
-                ((".*--cov.*") "")))))))
+              " and not test_print_trees"))))
     (native-inputs
      (list python-hatchling
            python-pytest))