Fix test failing when file_key_management_plugin doesn't load

* remove useless suppressions from the test file, when a plugin doesn't
  load, the file isn't executed anyway
* add the suppression to mysql-test-run.pl instead

mysql-test/mysql-test-run.pl

@@ -4386,6 +4386,7 @@ sub extract_warning_lines ($$) {
      qr/InnoDB: Error: table `test`.`t[12]` .*does not exist in the InnoDB internal/,
      qr/InnoDB: Warning: Setting innodb_use_sys_malloc/,
      qr/InnoDB: Warning: a long semaphore wait:/,
+     qr/InnoDB: Warning: Disabling redo log encryption/,
      qr/Slave: Unknown table 't1' .* 1051/,
      qr/Slave SQL:.*(Internal MariaDB error code: [[:digit:]]+|Query:.*)/,
      qr/slave SQL thread aborted/,

mysql-test/suite/innodb/t/innodb-page_encryption_log_encryption.test

@@ -8,8 +8,6 @@ let $innodb_file_per_table_orig = `SELECT @@innodb_file_per_table`;
 
 call mtr.add_suppression("KeyID 0 not found or with error. Check the key and the log file*");
 call mtr.add_suppression("Disabling redo log encryption");
-call mtr.add_suppression("InnoDB: [Warning] Disabling redo log encryption");
-call mtr.add_suppression("InnoDB:*");
 
 SET GLOBAL innodb_file_format = `Barracuda`;
 SET GLOBAL innodb_file_per_table = ON;