docs: Remove references to deprecated Allocation API types

Remove documentation for CurrentAlloc, Allocation, and LoadProfile types
that were removed in PR #553 as part of the model-based scaling cleanup.

Changes:
- Remove Allocation and LoadProfile type definitions from CRD reference
- Remove currentAlloc field from VariantAutoscalingStatus documentation
- Update status examples to use desiredOptimizedAlloc instead
- Update VariantAutoscalingStatus description to reflect current state

These types were part of the model-based scaling implementation and are
no longer needed for saturation-based scaling.

Author: Update Docs Bot

docs/design/controller-behavior.md

@@ -64,7 +64,7 @@ status:
   conditions:
   - type: Ready
     status: "True"
-  currentAllocation:
+  desiredOptimizedAlloc:
     numReplicas: 3
     accelerator: "A100"
 
@@ -75,8 +75,7 @@ status:
     status: "False"
     reason: "DeploymentNotFound"
     message: "Target deployment no longer exists"
-  currentAllocation:
-    numReplicas: 0
+  desiredOptimizedAlloc: {}
 ```
 
 When a Deployment is deleted:

docs/user-guide/configuration.md

@@ -64,8 +64,7 @@ status:
     status: "False"
     reason: "DeploymentNotFound"
     message: "Target deployment 'llama-8b' no longer exists"
-  currentAllocation:
-    numReplicas: 0  # Cleared to reflect no deployment
+  desiredOptimizedAlloc: {}  # Cleared to reflect no deployment
 ```
 
 **Recovery Process:**

docs/user-guide/crd-reference.md

@@ -30,48 +30,6 @@ _Appears in:_
 | `applied` _boolean_ | Applied indicates whether the actuation was successfully applied. |  |  |
 
 
-#### Allocation
-
-
-
-Allocation describes the current resource allocation for a model variant.
-
-
-
-_Appears in:_
-- [VariantAutoscalingStatus](#variantautoscalingstatus)
-
-| Field | Description | Default | Validation |
-| --- | --- | --- | --- |
-| `accelerator` _string_ | Accelerator is the type of accelerator currently allocated. |  | MinLength: 1 <br /> |
-| `numReplicas` _integer_ | NumReplicas is the number of replicas currently allocated. |  | Minimum: 0 <br /> |
-| `maxBatch` _integer_ | MaxBatch is the maximum batch size currently allocated. |  | Minimum: 0 <br /> |
-| `itlAverage` _string_ | ITLAverage is the average inter token latency for the current allocation. |  | Pattern: `^\d+(\.\d+)?$` <br /> |
-| `ttftAverage` _string_ | TTFTAverage is the average time to first token for the current allocation |  | Pattern: `^\d+(\.\d+)?$` <br /> |
-| `load` _[LoadProfile](#loadprofile)_ | Load describes the workload characteristics for the current allocation. |  |  |
-
-
-#### LoadProfile
-
-
-
-LoadProfile represents the configuration for workload characteristics,
-including the rate of incoming requests (ArrivalRate) and the average
-length of each request (AvgLength). Both fields are specified as strings
-to allow flexible input formats.
-
-
-
-_Appears in:_
-- [Allocation](#allocation)
-
-| Field | Description | Default | Validation |
-| --- | --- | --- | --- |
-| `arrivalRate` _string_ | ArrivalRate is the rate of incoming requests in inference server. |  |  |
-| `avgInputTokens` _string_ | AvgInputTokens is the average number of input(prefill) tokens per request in inference server. |  |  |
-| `avgOutputTokens` _string_ | AvgOutputTokens is the average number of output(decode) tokens per request in inference server. |  |  |
-
-
 #### OptimizedAlloc
 
 
@@ -156,7 +114,7 @@ _Appears in:_
 
 
 VariantAutoscalingStatus represents the current status of autoscaling for a variant,
-including the current allocation, desired optimized allocation, and actuation status.
+including the desired optimized allocation and actuation status.
 
 
 
@@ -165,7 +123,6 @@ _Appears in:_
 
 | Field | Description | Default | Validation |
 | --- | --- | --- | --- |
-| `currentAlloc` _[Allocation](#allocation)_ | CurrentAlloc specifies the current resource allocation for the variant. |  | Optional: \{\} <br /> |
 | `desiredOptimizedAlloc` _[OptimizedAlloc](#optimizedalloc)_ | DesiredOptimizedAlloc indicates the target optimized allocation based on autoscaling logic. |  |  |
 | `actuation` _[ActuationStatus](#actuationstatus)_ | Actuation provides details about the actuation process and its current status. |  |  |
 | `conditions` _[Condition](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.32/#condition-v1-meta) array_ | Conditions represent the latest available observations of the VariantAutoscaling's state |  | Optional: \{\} <br /> |