Use a single uuid parameter in api-ref

Currently, there is a node_uuid parameter that describes specifically
a node UUID in response body. Let's use just uuid.

Change-Id: I43ffe017188c1f15a0c6d8007d4bd463e867b774

api-ref/source/baremetal-api-v1-nodes.inc

@@ -75,7 +75,7 @@ The list and example below are representative of the response as of API microver
 
 .. rest_parameters:: parameters.yaml
 
-    - uuid: node_uuid
+    - uuid: uuid
     - name: node_name
     - power_state: power_state
     - target_power_state: target_power_state
@@ -202,7 +202,7 @@ Response
 
 .. rest_parameters:: parameters.yaml
 
-    - uuid: node_uuid
+    - uuid: uuid
     - name: node_name
     - power_state: power_state
     - target_power_state: target_power_state
@@ -260,7 +260,7 @@ Response
 
 .. rest_parameters:: parameters.yaml
 
-    - uuid: node_uuid
+    - uuid: uuid
     - name: node_name
     - power_state: power_state
     - target_power_state: target_power_state
@@ -325,7 +325,7 @@ Response
 
 .. rest_parameters:: parameters.yaml
 
-    - uuid: node_uuid
+    - uuid: uuid
     - name: node_name
     - power_state: power_state
     - target_power_state: target_power_state
@@ -373,4 +373,4 @@ Request
 
 .. rest_parameters:: parameters.yaml
 
-   - node_ident: node_ident
+   - node_ident: node_ident

api-ref/source/parameters.yaml

@@ -380,12 +380,6 @@ node_name:
   in: body
   required: false
   type: string
-node_uuid:
-  description: |
-    UUID of the Node resource.
-  in: body
-  required: true
-  type: string
 nodes:
   description: |
     Links to the collection of nodes contained in
@@ -573,4 +567,4 @@ versions:
     Array of information about currently supported versions.
   in: body
   required: true
-  type: array
+  type: array