Revert "Atomic memory function can only be used for shader storage block member or shared variable."

Test/atomicAdd.comp

@@ -1,19 +0,0 @@
-#version 320 es
-layout(local_size_x = 1) in;
-
-struct structType{
-    int y[3];
-};
-
-layout(std430) buffer t2 {
-    structType f;
-} t;
-
-buffer coherent Buffer { int x; };
-int z;
-
-void main() {
-  atomicAdd(x, 1);
-  atomicAdd(t.f.y[1], 1);
-  atomicAdd(z, 1);
-}