Remove permissions that are only required by hdfs, since removed

gradle/testing/randomization/policies/solr-tests.policy

@@ -103,12 +103,7 @@ grant {
   permission java.lang.RuntimePermission "closeClassLoader";
   // needed by HttpSolrClient
   permission java.lang.RuntimePermission "getFileSystemAttributes";
-  // needed by hadoop hdfs (TODO: there is a cleaner way to handle this)
-  // permission java.lang.RuntimePermission "loadLibrary.jaas";
-  // permission java.lang.RuntimePermission "loadLibrary.jaas_unix";
-  // permission java.lang.RuntimePermission "loadLibrary.jaas_nt";
-  // needed by hadoop common RawLocalFileSystem for java nio getOwner
-  // permission java.lang.RuntimePermission "accessUserInformation";
+
   // needed by mockito http
   permission java.lang.RuntimePermission "getProtectionDomain";
   // SolrProcessMgr to list processes
@@ -136,14 +131,6 @@ grant {
   permission javax.management.MBeanServerPermission "releaseMBeanServer";
   permission javax.management.MBeanTrustPermission "register";
 
-  // needed by hadoop hdfs
-  //permission javax.security.auth.AuthPermission "getSubject";
-  //permission javax.security.auth.AuthPermission "modifyPrincipals";
-  //permission javax.security.auth.AuthPermission "doAs";
-  //permission javax.security.auth.AuthPermission "modifyPrivateCredentials";
-  //permission javax.security.auth.AuthPermission "modifyPublicCredentials";
-  //permission javax.security.auth.PrivateCredentialPermission "org.apache.hadoop.security.Credentials * \"*\"", "read";
-
   // needed by crossdc
   permission javax.security.auth.AuthPermission "getLoginConfiguration";
   permission javax.security.auth.AuthPermission "setLoginConfiguration";