Remove uniforms from unused shaders

libraries/render-utils/src/deferred_light_limited.slv

@@ -18,7 +18,8 @@
 
 <$declareStandardTransform()$>
 
-uniform vec4 sphereParam;
+// FIXME make into a uniform buffer or push constant if this shader ever comes into use
+vec4 sphereParam = vec4(0.0);
 
 layout(location=RENDER_UTILS_ATTR_TEXCOORD01) out vec4 _texCoord01;
 

libraries/render-utils/src/fxaa.slf

@@ -24,7 +24,9 @@ precision mediump int;
 
 layout(binding=0) uniform sampler2D colorTexture;
 //uniform sampler2D historyTexture;
-layout(location=0) uniform vec2 texcoordOffset;
+
+// FIXME make into a uniform buffer or push constant if this shader ever comes into use
+vec2 texcoordOffset = vec2(0.0);
 
 layout(location=0) in vec2 varTexCoord0;
 layout(location=0) out vec4 outFragColor;

libraries/render-utils/src/subsurfaceScattering_drawScattering.slf

@@ -26,7 +26,8 @@
 layout(location=0) in vec2 varTexCoord0;
 layout(location=0) out vec4 _fragColor;
 
-layout(location=GPU_UNIFORM_EXTRA0) uniform vec2 uniformCursorTexcoord = vec2(0.5);
+// FIXME make into a uniform buffer or push constant if this shader ever comes into use
+vec2 uniformCursorTexcoord = vec2(0.5);
 
 //uniform vec3 uniformLightVector = vec3(1.0);