Fix Cycles render time pass being available in UI, but it was removed

This previously only work for CPU rendering, and isn't that practical to get
working in the new architecture.

intern/cycles/blender/addon/engine.py

@@ -211,7 +211,6 @@ def list_render_passes(scene, srl):
     if crl.use_pass_shadow_catcher:        yield ("Shadow Catcher",      "RGB",  'COLOR')
 
     # Debug passes.
-    if crl.pass_debug_render_time:             yield ("Debug Render Time",             "X",   'VALUE')
     if crl.pass_debug_sample_count:            yield ("Debug Sample Count",            "X",   'VALUE')
 
     # Cryptomatte passes.

intern/cycles/blender/addon/properties.py

@@ -1197,12 +1197,6 @@ class CyclesCurveRenderSettings(bpy.types.PropertyGroup):
 
 class CyclesRenderLayerSettings(bpy.types.PropertyGroup):
 
-    pass_debug_render_time: BoolProperty(
-        name="Debug Render Time",
-        description="Render time in milliseconds per sample and pixel",
-        default=False,
-        update=update_render_passes,
-    )
     pass_debug_sample_count: BoolProperty(
         name="Debug Sample Count",
         description="Number of samples/camera rays per pixel",

intern/cycles/blender/addon/ui.py

@@ -792,7 +792,6 @@ class CYCLES_RENDER_PT_passes_data(CyclesButtonsPanel, Panel):
         col.prop(view_layer, "use_pass_material_index")
 
         col = layout.column(heading="Debug", align=True)
-        col.prop(cycles_view_layer, "pass_debug_render_time", text="Render Time")
         col.prop(cycles_view_layer, "pass_debug_sample_count", text="Sample Count")
 
         layout.prop(view_layer, "pass_alpha_threshold")

intern/cycles/blender/blender_sync.cpp

@@ -545,8 +545,6 @@ static PassType get_blender_pass_type(BL::RenderPass &b_pass)
   MAP_PASS("Shadow Catcher", PASS_SHADOW_CATCHER);
   MAP_PASS("Noisy Shadow Catcher", PASS_SHADOW_CATCHER);
 
-  MAP_PASS("Debug Render Time", PASS_RENDER_TIME);
-
   MAP_PASS("AdaptiveAuxBuffer", PASS_ADAPTIVE_AUX_BUFFER);
   MAP_PASS("Debug Sample Count", PASS_SAMPLE_COUNT);
 
@@ -604,10 +602,6 @@ void BlenderSync::sync_render_passes(BL::RenderLayer &b_rlay, BL::ViewLayer &b_v
   PointerRNA crl = RNA_pointer_get(&b_view_layer.ptr, "cycles");
 
   /* Debug passes. */
-  if (get_boolean(crl, "pass_debug_render_time")) {
-    b_engine.add_pass("Debug Render Time", 1, "X", b_view_layer.name().c_str());
-    pass_add(scene, PASS_RENDER_TIME, "Debug Render Time");
-  }
   if (get_boolean(crl, "pass_debug_sample_count")) {
     b_engine.add_pass("Debug Sample Count", 1, "X", b_view_layer.name().c_str());
     pass_add(scene, PASS_SAMPLE_COUNT, "Debug Sample Count");

intern/cycles/integrator/pass_accessor.cpp

@@ -149,9 +149,6 @@ bool PassAccessor::get_render_tile_pixels(const RenderBuffers *render_buffers,
       /* Denoised passes store their final pixels, no need in special calculation. */
       get_pass_float(render_buffers, buffer_params, destination);
     }
-    else if (type == PASS_RENDER_TIME) {
-      /* TODO(sergey): Needs implementation. */
-    }
     else if (type == PASS_DEPTH) {
       get_pass_depth(render_buffers, buffer_params, destination);
     }

intern/cycles/kernel/kernel_types.h

@@ -360,7 +360,6 @@ typedef enum PassType {
   PASS_MATERIAL_ID,
   PASS_MOTION,
   PASS_MOTION_WEIGHT,
-  PASS_RENDER_TIME,
   PASS_CRYPTOMATTE,
   PASS_AOV_COLOR,
   PASS_AOV_VALUE,

intern/cycles/render/film.cpp

@@ -326,8 +326,6 @@ void Film::device_update(Device *device, DeviceScene *dscene, Scene *scene)
         kfilm->pass_bake_differential = kfilm->pass_stride;
         break;
 
-      case PASS_RENDER_TIME:
-        break;
       case PASS_CRYPTOMATTE:
         kfilm->pass_cryptomatte = have_cryptomatte ?
                                       min(kfilm->pass_cryptomatte, kfilm->pass_stride) :

intern/cycles/render/pass.cpp

@@ -89,7 +89,6 @@ const NodeEnum *Pass::get_type_enum()
     pass_type_enum.insert("material_id", PASS_MATERIAL_ID);
     pass_type_enum.insert("motion", PASS_MOTION);
     pass_type_enum.insert("motion_weight", PASS_MOTION_WEIGHT);
-    pass_type_enum.insert("render_time", PASS_RENDER_TIME);
     pass_type_enum.insert("cryptomatte", PASS_CRYPTOMATTE);
     pass_type_enum.insert("aov_color", PASS_AOV_COLOR);
     pass_type_enum.insert("aov_value", PASS_AOV_VALUE);
@@ -217,10 +216,6 @@ PassInfo Pass::get_info(const PassType type, const bool include_albedo)
       pass_info.num_components = 3;
       pass_info.use_exposure = false;
       break;
-    case PASS_RENDER_TIME:
-      /* This pass is handled entirely on the host side. */
-      pass_info.num_components = 0;
-      break;
 
     case PASS_DIFFUSE_COLOR:
     case PASS_GLOSSY_COLOR: