Merge pull request #36693 from ConnorDoyle/oir-cleanup

Automatic merge from submit-queue (batch tested with PRs 36693, 40154, 40170, 39033)

Minor hygiene in scheduler.

**What this PR does / why we need it**:

Minor cleanups in scheduler, related to PR #31652.

- Unified lazy opaque resource caching.
- Deleted a commented-out line of code.

**Release note**:
```release-note
N/A
```

plugin/pkg/scheduler/algorithm/predicates/predicates.go

@@ -463,11 +463,7 @@ func GetResourceRequest(pod *v1.Pod) *schedulercache.Resource {
 				result.NvidiaGPU += rQuantity.Value()
 			default:
 				if v1.IsOpaqueIntResourceName(rName) {
-					// Lazily allocate this map only if required.
-					if result.OpaqueIntResources == nil {
-						result.OpaqueIntResources = map[v1.ResourceName]int64{}
-					}
-					result.OpaqueIntResources[rName] += rQuantity.Value()
+					result.AddOpaque(rName, rQuantity.Value())
 				}
 			}
 		}
@@ -490,11 +486,9 @@ func GetResourceRequest(pod *v1.Pod) *schedulercache.Resource {
 				}
 			default:
 				if v1.IsOpaqueIntResourceName(rName) {
-					// Lazily allocate this map only if required.
-					if result.OpaqueIntResources == nil {
-						result.OpaqueIntResources = map[v1.ResourceName]int64{}
-					}
 					value := rQuantity.Value()
+					// Ensure the opaque resource map is initialized in the result.
+					result.AddOpaque(rName, int64(0))
 					if value > result.OpaqueIntResources[rName] {
 						result.OpaqueIntResources[rName] = value
 					}