[gtk] gl renderer: Remove unused uniform from inset shadow shader

[Timm Bäder <baedert src gnome org>]

commit 56b456ff21702bf280c98e948cd1460c18a6909b
Author: Timm Bäder <mail baedert org>
Date:   Sat Nov 30 12:44:15 2019 +0100

    gl renderer: Remove unused uniform from inset shadow shader

 gsk/resources/glsl/inset_shadow.fs.glsl | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/gsk/resources/glsl/inset_shadow.fs.glsl b/gsk/resources/glsl/inset_shadow.fs.glsl
index 87a7205de2..e0b28d6589 100644
--- a/gsk/resources/glsl/inset_shadow.fs.glsl
+++ b/gsk/resources/glsl/inset_shadow.fs.glsl
@@ -1,5 +1,4 @@
 uniform float u_spread;
-uniform float u_blur_radius;
 uniform vec4 u_color;
 uniform vec2 u_offset;
 uniform vec4 u_outline;