Revert "Credit the Lena Image source"

This reverts commit a04cdce04a389c24d8a549027072a9de172b1fa8.

index.html

@@ -24,7 +24,7 @@
 
     <div id="sec-squish">
       <h2 id="demo-squish"><a href="#demo-squish">Squish</a></h2>
-      <p>Image by <a href="https://mortenhannemose.github.io/lena/">Morten Rieger Hannemose</a>. Resizing images on the fly. Source:&nbsp;<a href="https://github.com/tsoding/olive.c/blob/master/demos/squish.c">demos/squish.c</a></p>
+      <p>Resizing images on the fly. Source:&nbsp;<a href="https://github.com/tsoding/olive.c/blob/master/demos/squish.c">demos/squish.c</a></p>
       <canvas id="app-squish"></canvas>
     </div>
 
@@ -36,7 +36,7 @@
 
     <div id="sec-triangleTex">
       <h2 id="demo-triangleTex"><a href="#demo-triangleTex">Rotating 2D Textures</a></h2>
-      <p>Image by <a href="https://mortenhannemose.github.io/lena/">Morten Rieger Hannemose</a>. Source:&nbsp;<a href="https://github.com/tsoding/olive.c/blob/master/demos/triangleTex.c">demos/triangleTex.c</a></p>
+      <p>Source:&nbsp;<a href="https://github.com/tsoding/olive.c/blob/master/demos/triangleTex.c">demos/triangleTex.c</a></p>
       <canvas id="app-triangleTex"></canvas>
     </div>