Remove metadata for configuration keys that were removed in 2.0

Closes gh-19706

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

@@ -5,26 +5,6 @@
       "type": "java.lang.Boolean",
       "description": "Whether to enable development property defaults.",
       "defaultValue": true
-    },
-    {
-      "name": "spring.devtools.remote.debug.enabled",
-      "type": "java.lang.Boolean",
-      "description": "Enable remote debug support.",
-      "defaultValue": true,
-      "deprecation": {
-        "reason": "Remote debug is no longer supported.",
-        "level": "error"
-      }
-    },
-    {
-      "name": "spring.devtools.remote.debug.local-port",
-      "type": "java.lang.Integer",
-      "description": "Local remote debug server port.",
-      "defaultValue": 8000,
-      "deprecation": {
-        "reason": "Remote debug is no longer supported.",
-        "level": "error"
-      }
     }
   ]
 }

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

@@ -6,73 +6,6 @@
     }
   ],
   "properties": [
-    {
-      "name": "banner.charset",
-      "type": "java.nio.charset.Charset",
-      "description": "Banner file encoding.",
-      "defaultValue": "UTF-8",
-      "deprecation": {
-        "replacement": "spring.banner.charset",
-        "level": "error"
-      }
-    },
-    {
-      "name": "banner.image.height",
-      "type": "java.lang.Integer",
-      "description": "Banner image height (in chars).",
-      "deprecation": {
-        "replacement": "spring.banner.image.height",
-        "level": "error"
-      }
-    },
-    {
-      "name": "banner.image.invert",
-      "type": "java.lang.Boolean",
-      "description": "Invert images for dark console themes.",
-      "defaultValue": false,
-      "deprecation": {
-        "replacement": "spring.banner.image.invert",
-        "level": "error"
-      }
-    },
-    {
-      "name": "banner.image.location",
-      "type": "org.springframework.core.io.Resource",
-      "description": "Banner image file location (jpg/png can also be used).",
-      "defaultValue": "banner.gif",
-      "deprecation": {
-        "replacement": "spring.banner.image.location",
-        "level": "error"
-      }
-    },
-    {
-      "name": "banner.image.margin",
-      "type": "java.lang.Integer",
-      "description": "Left hand image margin (in chars).",
-      "deprecation": {
-        "replacement": "spring.banner.image.margin",
-        "level": "error"
-      }
-    },
-    {
-      "name": "banner.image.width",
-      "type": "java.lang.Integer",
-      "description": "Banner image width (in chars).",
-      "deprecation": {
-        "replacement": "spring.banner.image.width",
-        "level": "error"
-      }
-    },
-    {
-      "name": "banner.location",
-      "type": "org.springframework.core.io.Resource",
-      "description": "Banner text resource location.",
-      "defaultValue": "classpath:banner.txt",
-      "deprecation": {
-        "replacement": "spring.banner.location",
-        "level": "error"
-      }
-    },
     {
       "name": "debug",
       "type": "java.lang.Boolean",