Remove stale metadata for management.health.influxdb.enabled

The property was deprecated in 3.2 and support removed in 3.4. This
commit updates the metadata to reflect that removal.

Closes gh-45747

Author: wilkinsona

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

@@ -166,14 +166,6 @@
         "level": "error"
       }
     },
-    {
-      "name": "management.health.influxdb.enabled",
-      "type": "java.lang.Boolean",
-      "deprecation": {
-        "level": "error",
-        "reason": "InfluxDB support has been removed."
-      }
-    },
     {
       "name": "management.health.jms.enabled",
       "type": "java.lang.Boolean",