querybuilder: remove unused PLATFORM_MW_BACKEND_HOST env var (#208)

Remove the `PLATFORM_MW_BACKEND_HOST` environment variable from the `tools-querybuilder` chart, as it's no longer used in the codebase.

Bug: T411633

Author: outdooracorn

charts/tool-querybuilder/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: tool-querybuilder
 description: A Helm chart for deploying the Wikidata query builder https://gerrit.wikimedia.org/g/wikidata/query-builder
 type: application
-version: 0.2.0
+version: 0.3.0
 appVersion: 1.0.0
 
 maintainers:

charts/tool-querybuilder/templates/deployment.yaml

@@ -42,8 +42,6 @@ spec:
               mountPath: /usr/share/ca-certificates/extra
               readOnly: true
           env:
-            - name: PLATFORM_MW_BACKEND_HOST
-              value: {{ .Values.platform.mediawikiBackendHost | quote }}
             - name: VUE_APP_SUBCLASS_PROPERTY_MAP
               value:  {{ .Values.app.subclassPropertyMap | quote }}
             - name: VUE_APP_SI_CONVERSION_PROPERTY

charts/tool-querybuilder/values.yaml

@@ -7,9 +7,6 @@ image:
   tag: "2024-12-03-110242"
   pullPolicy: IfNotPresent
 
-platform:
-  mediawikiBackendHost: someHost
-
 app:
   subclassPropertyMap: '{"default":"P279","P171":"P171","P131":"P131"}'
   siConversionProperty: 'P2370'