Bug 1694909 - Part 11 - Remove texture array shader variations. r=gw

A small patch but probably the most impactful of this series as it removes a whole lot of generated shaders.

Differential Revision: https://phabricator.services.mozilla.com/D106509

gfx/wr/webrender/res/shared.glsl

@@ -22,11 +22,7 @@
 
 #include base
 
-#if defined(WR_FEATURE_TEXTURE_EXTERNAL) || defined(WR_FEATURE_TEXTURE_RECT) || defined(WR_FEATURE_TEXTURE_2D)
 #define TEX_SAMPLE(sampler, tex_coord) texture(sampler, tex_coord.xy)
-#else
-#define TEX_SAMPLE(sampler, tex_coord) texture(sampler, tex_coord)
-#endif
 
 #if defined(WR_FEATURE_TEXTURE_EXTERNAL) && defined(PLATFORM_ANDROID)
 // On some Mali GPUs we have encountered crashes in glDrawElements when using
@@ -187,10 +183,6 @@ uniform sampler2DRect sColor2;
 uniform samplerExternalOES sColor0;
 uniform samplerExternalOES sColor1;
 uniform samplerExternalOES sColor2;
-#elif defined WR_FEATURE_TEXTURE_2D_ARRAY
-uniform sampler2DArray sColor0;
-uniform sampler2DArray sColor1;
-uniform sampler2DArray sColor2;
 #endif
 
 #ifdef WR_FEATURE_DITHERING

gfx/wr/webrender_build/src/shader_features.rs

@@ -109,7 +109,7 @@ pub fn get_shader_features(flags: ShaderFeatureFlags) -> ShaderFeatures {
     }
 
     // Image brush shaders
-    let mut texture_types = vec!["TEXTURE_2D_ARRAY", "TEXTURE_2D"];
+    let mut texture_types = vec!["TEXTURE_2D"];
     if flags.contains(ShaderFeatureFlags::GL) {
         texture_types.push("TEXTURE_RECT");
     }