Remove outdated news entries

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@@ -136,29 +136,6 @@ <h5 class="date">Sept 15, 2023</h5>
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-            <h5 class="date">May 30, 2023</h5>
-            <a href="https://discourse.matplotlib.org/t/gsoc-contributor-chosen/23850" class="link--offsite">Ratnabali Dutta chosen as GSOC contributor</a>
-            <p>
-              Thanks to the Google Summer of Code (GSOC) program, Ratnabali Dutta joins us this summer to work on improving our mathematical typesetting module <a href="https://matplotlib.org/stable/tutorials/text/mathtext.html">MathTex</a>.
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-            <h5 class="date">May 18, 2023</h5>
-            <a href="https://discourse.matplotlib.org/t/gsod-writer-hired/23796" class="link--offsite">Eva Sibinga hired as GSOD Technical Writer</a>
-            <p>
-              Thanks to funding from the Google Season of Docs (GSOD) program, Eva Sibinga will be joining us to work on <a href="https://github.com/matplotlib/matplotlib/wiki/Google-Season-of-Docs-2023:-Proposal">cataloguing our gallery</a>.
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-            <h5 class="date">May 5, 2023</h5>
-            <a href="https://discourse.matplotlib.org/t/fostering-an-inclusive-culture-call-for-participation/23783" class="link--offsite">Fostering an Inclusive Culture: Call for Participation</a>
-            <p>
-              How can we be better when it comes to diversity and inclusion?
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