shader: replace CPU selector chains with direct image-table lookup

src/graphics/shader/recompiler/backend/spirv/spirvEmitterImage.cpp

@@ -849,7 +849,7 @@ void EmitImage(ValueEmitContext& ctx, const IR::Inst& inst) {
 			return;
 		}
 		const auto key = ctx.Def(handle->Arg(0));
-		if (state.flattened_srt_variable == 0 || image.indirect_search_iterations == 0u ||
+		if (state.flattened_srt_variable == 0 ||
 		    image.indirect_resources.size() < 2u) {
 			ctx.Fail(inst, "has no indirect image runtime mapping");
 			return;