Remove node count assertions from cat/health test

The test validates /_cat/health response formats, not cluster topology.
Hardcoding node.total=1 and node.data=1 breaks on multi-node clusters.

Signed-off-by: Sean Chittenden <sean.chittenden@crowdstrike.com>

Author: sean-

tests/default/cat/health.yaml

@@ -51,9 +51,6 @@ chapters:
     response:
       status: 200
       content_type: application/json
-      payload:
-        - node.total: '1'
-          node.data: '1'
   - synopsis: List the status of the cluster with master response (format=json).
     method: GET
     path: /_cat/health
@@ -64,9 +61,7 @@ chapters:
       status: 200
       content_type: application/json
       payload:
-        - node.total: '1'
-          node.data: '1'
-          discovered_master: 'true'
+        - discovered_master: 'true'
   - synopsis: List the status of the cluster with cluster_manager response (format=json).
     method: GET
     path: /_cat/health
@@ -77,9 +72,7 @@ chapters:
       status: 200
       content_type: application/json
       payload:
-        - node.total: '1'
-          node.data: '1'
-          discovered_cluster_manager: 'true'
+        - discovered_cluster_manager: 'true'
   - synopsis: List the status of the cluster in different formats (format=yaml).
     method: GET
     path: /_cat/health
@@ -88,9 +81,6 @@ chapters:
     response:
       status: 200
       content_type: application/yaml
-      payload:
-        - node.total: '1'
-          node.data: '1'
   - synopsis: List the status of the cluster in different formats (format=cbor).
     distributions:
       excluded:
@@ -103,9 +93,6 @@ chapters:
     response:
       status: 200
       content_type: application/cbor
-      payload:
-        - node.total: '1'
-          node.data: '1'
   - synopsis: List the status of the cluster in different formats (format=smile).
     distributions:
       excluded:
@@ -118,6 +105,3 @@ chapters:
     response:
       status: 200
       content_type: application/smile
-      payload:
-        - node.total: '1'
-          node.data: '1'