rm orphan note

Former-commit-id: 9b27e1a64f2dd6f625e55f62f27644cf8e8cbae7

matlab-to-eigen.html

@@ -255,7 +255,7 @@ IP.conservativeResize(stable_partition(
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         <td><pre><code>B = A(R&lt;2,C&gt;1);</code></pre>
         <td><pre><code>B = igl::slice_mask(A,R.array()&lt;2,C.array()&gt;1);</code></pre>
-        <td>Where </td>
+        <td></td>
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