Remove error-level metadata for Spring Mobile

While Spring Mobile support has been removed from Spring Boot, the
auto-configuration has been relocated to a separate module that uses
the same keys.

Flagging those keys as deprecated means that the IDE will be confused
when the extra jar is present on the classpath as it advertizes, as
it should, support fo them.

Closes gh-11844

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

@@ -1256,96 +1256,6 @@
         "level": "error"
       }
     },
-    {
-      "name": "spring.mobile.devicedelegatingviewresolver.enabled",
-      "type": "java.lang.Boolean",
-      "description": "Enable device view resolver.",
-      "defaultValue": false,
-      "deprecation": {
-        "reason": "Spring Mobile support is no longer available.",
-        "level": "error"
-      }
-    },
-    {
-      "name": "spring.mobile.devicedelegatingviewresolver.enable-fallback",
-      "type": "java.lang.Boolean",
-      "description": "Enable support for fallback resolution.",
-      "defaultValue": false,
-      "deprecation": {
-        "reason": "Spring Mobile support is no longer available.",
-        "level": "error"
-      }
-    },
-    {
-      "name": "spring.mobile.devicedelegatingviewresolver.mobile-prefix",
-      "type": "java.lang.String",
-      "description": "Prefix that gets prepended to view names for mobile devices.",
-      "defaultValue": "mobile/",
-      "deprecation": {
-        "reason": "Spring Mobile support is no longer available.",
-        "level": "error"
-      }
-    },
-    {
-      "name": "spring.mobile.devicedelegatingviewresolver.mobile-suffix",
-      "type": "java.lang.String",
-      "description": "Suffix that gets appended to view names for mobile devices.",
-      "defaultValue": "",
-      "deprecation": {
-        "reason": "Spring Mobile support is no longer available.",
-        "level": "error"
-      }
-    },
-    {
-      "name": "spring.mobile.devicedelegatingviewresolver.normal-prefix",
-      "type": "java.lang.String",
-      "description": "Prefix that gets prepended to view names for normal devices.",
-      "defaultValue": "",
-      "deprecation": {
-        "reason": "Spring Mobile support is no longer available.",
-        "level": "error"
-      }
-    },
-    {
-      "name": "spring.mobile.devicedelegatingviewresolver.normal-suffix",
-      "type": "java.lang.String",
-      "description": "Suffix that gets appended to view names for normal devices.",
-      "defaultValue": "",
-      "deprecation": {
-        "reason": "Spring Mobile support is no longer available.",
-        "level": "error"
-      }
-    },
-    {
-      "name": "spring.mobile.devicedelegatingviewresolver.tablet-prefix",
-      "type": "java.lang.String",
-      "description": "Prefix that gets prepended to view names for tablet devices.",
-      "defaultValue": "tablet/",
-      "deprecation": {
-        "reason": "Spring Mobile support is no longer available.",
-        "level": "error"
-      }
-    },
-    {
-      "name": "spring.mobile.devicedelegatingviewresolver.tablet-suffix",
-      "type": "java.lang.String",
-      "description": "Suffix that gets appended to view names for tablet devices.",
-      "defaultValue": "",
-      "deprecation": {
-        "reason": "Spring Mobile support is no longer available.",
-        "level": "error"
-      }
-    },
-    {
-      "name": "spring.mobile.sitepreference.enabled",
-      "type": "java.lang.Boolean",
-      "description": "Enable SitePreferenceHandler.",
-      "defaultValue": true,
-      "deprecation": {
-        "reason": "Spring Mobile support is no longer available.",
-        "level": "error"
-      }
-    },
     {
       "name": "spring.redis.pool.max-active",
       "type": "java.lang.Integer",