glsl: Fix typo

Remove extra "any" and re-word-wrap the comment.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

src/glsl/lower_packed_varyings.cpp

@@ -199,8 +199,8 @@ private:
 
    /**
     * Number of generic varying slots which are used by this shader.  This is
-    * used to allocate temporary intermediate data structures.  If any any
-    * varying used by this shader has a location greater than or equal to
+    * used to allocate temporary intermediate data structures.  If any varying
+    * used by this shader has a location greater than or equal to
     * location_base + locations_used, an assertion will fire.
     */
    const unsigned locations_used;