Remove Woodwork core requirement (#258)

* Update pyproject.toml

* Update release_notes.rst

Author: gsheni

pyproject.toml

@@ -41,7 +41,6 @@ dependencies = [
     "featuretools >= 1.5.0",
     "nltk >= 3.4.5",
     "scikit-learn >= 0.20.0",
-    "woodwork >= 0.8.1",
 ]
 
 [project.urls]

release_notes.rst

@@ -10,6 +10,7 @@ Future Release
     * Changes
        * Fix ruff argument in pyproject.toml (:pr:`239`)
        * Remove `constants.py` (:pr:`243`)
+       * Remove Woodwork as a core requirement (:pr:`258`)
     * Documentation Changes
     * Testing Changes
        * Add pull request check for linked issues to CI workflow (:pr:`245`)