Remove references to endpoints.hal

See gh-3696

spring-boot-actuator/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -23,12 +23,6 @@
     "description": "Enable actuator docs endpoint.",
     "defaultValue": true
   },
-  {
-    "name": "endpoints.hal.enabled",
-    "type": "java.lang.Boolean",
-    "description": "Enable Spring Data HAL browser endpoint.",
-    "defaultValue": true
-  },
   {
     "name": "endpoints.jmx.enabled",
     "type": "java.lang.Boolean",

spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -711,9 +711,6 @@ content into your application; rather pick only the properties that you need.
 	endpoints.flyway.enabled=true
 	endpoints.flyway.id=flyway
 	endpoints.flyway.sensitive=true
-	endpoints.hal.enabled=true
-	endpoints.hal.path= # Redirects root HTML traffic to the HAL browser
-	endpoints.hal.sensitive=false
 	endpoints.liquibase.enabled=true
 	endpoints.liquibase.id=liquibase
 	endpoints.liquibase.sensitive=false