docs: remove obsolete target attribute
diff --git a/docs/shading.html b/docs/shading.html
index c501e96..a12487b 100644
--- a/docs/shading.html
+++ b/docs/shading.html
@@ -18,7 +18,7 @@
<p>
This page describes the features and status of Mesa's support for the
-<a href="http://opengl.org/documentation/glsl/" target="_parent">
+<a href="http://opengl.org/documentation/glsl/">
OpenGL Shading Language</a>.
</p>
@@ -250,10 +250,9 @@
</p>
<p>
-The <a href="http://piglit.freedesktop.org/" target="_parent">Piglit</a> project
+The <a href="http://piglit.freedesktop.org/">Piglit</a> project
has many GLSL tests and the
-<a href="http://glean.sf.net" target="_parent">Glean</a> glsl1 test
-tests GLSL features.
+<a href="http://glean.sf.net">Glean</a> glsl1 test tests GLSL features.
</p>
<p>