Revert "[Entitlements] Add URLConnection instrumentation for file protocol (elastic#123824)"

This reverts commit 92b6ba7.

Author: ldematte

libs/entitlement/bridge/src/main/java/org/elasticsearch/entitlement/bridge/EntitlementChecker.java

@@ -1148,26 +1148,6 @@ void checkPathRegister(
         WatchEvent.Modifier... modifiers
     );
 
-    // URLConnection
-
-    void check$sun_net_www_protocol_file_FileURLConnection$connect(Class<?> callerClass, java.net.URLConnection that);
-
-    void check$sun_net_www_protocol_file_FileURLConnection$getHeaderFields(Class<?> callerClass, java.net.URLConnection that);
-
-    void check$sun_net_www_protocol_file_FileURLConnection$getHeaderField(Class<?> callerClass, java.net.URLConnection that, String name);
-
-    void check$sun_net_www_protocol_file_FileURLConnection$getHeaderField(Class<?> callerClass, java.net.URLConnection that, int n);
-
-    void check$sun_net_www_protocol_file_FileURLConnection$getContentLength(Class<?> callerClass, java.net.URLConnection that);
-
-    void check$sun_net_www_protocol_file_FileURLConnection$getContentLengthLong(Class<?> callerClass, java.net.URLConnection that);
-
-    void check$sun_net_www_protocol_file_FileURLConnection$getHeaderFieldKey(Class<?> callerClass, java.net.URLConnection that, int n);
-
-    void check$sun_net_www_protocol_file_FileURLConnection$getLastModified(Class<?> callerClass, java.net.URLConnection that);
-
-    void check$sun_net_www_protocol_file_FileURLConnection$getInputStream(Class<?> callerClass, java.net.URLConnection that);
-
     ////////////////////
     //
     // Thread management

libs/entitlement/qa/entitled-plugin/src/main/java/org/elasticsearch/entitlement/qa/entitled/EntitledActions.java

@@ -71,9 +71,4 @@ public static URLConnection createHttpsURLConnection() throws IOException {
     public static URLConnection createFtpURLConnection() throws IOException {
         return URI.create("ftp://127.0.0.1:12345/").toURL().openConnection();
     }
-
-    public static URLConnection createFileURLConnection() throws IOException {
-        var fileUrl = createTempFileForWrite().toUri().toURL();
-        return fileUrl.openConnection();
-    }
 }

libs/entitlement/qa/entitlement-test-plugin/src/main/java/org/elasticsearch/entitlement/qa/test/RestEntitlementsCheckAction.java

@@ -194,7 +194,6 @@ static CheckAction alwaysDenied(CheckedRunnable<Exception> action) {
         getTestEntries(PathActions.class),
         getTestEntries(SpiActions.class),
         getTestEntries(SystemActions.class),
-        getTestEntries(URLConnectionFileActions.class),
         getTestEntries(URLConnectionNetworkActions.class),
         getTestEntries(VersionSpecificManageThreadsActions.class),
         getTestEntries(VersionSpecificNioFileSystemActions.class)