Update VideoTexture.html

Removes the reference to `requestanimationframe`.

docs/api/textures/VideoTexture.html

@@ -15,11 +15,7 @@
 		<div class="desc">
 		Creates a texture for use with a video texture.<br /><br />
 
-		This is almost the same as the base [page:Texture Texture] class,
-    except that it continuosly sets [page:Texture.needsUpdate needsUpdate] to *true*
-    (using <a href="https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame">requestAnimationFrame</a>)
-    so that the texture is updated as the video plays. Automatic creation of [page:Texture.mipmaps mipmaps]
-    is also disabled.
+		This is almost the same as the base [page:Texture Texture] class, except that it continuosly sets [page:Texture.needsUpdate needsUpdate] to *true* so that the texture is updated as the video plays. Automatic creation of [page:Texture.mipmaps mipmaps] is also disabled.
 		</div>
 
     <h2>Example</h2>