Remove unneeded implements

Author: paulbalandan

system/Database/OCI8/Connection.php

@@ -12,7 +12,6 @@
 namespace CodeIgniter\Database\OCI8;
 
 use CodeIgniter\Database\BaseConnection;
-use CodeIgniter\Database\ConnectionInterface;
 use CodeIgniter\Database\Exceptions\DatabaseException;
 use CodeIgniter\Database\Query;
 use ErrorException;
@@ -21,7 +20,7 @@
 /**
  * Connection for OCI8
  */
-class Connection extends BaseConnection implements ConnectionInterface
+class Connection extends BaseConnection
 {
     /**
      * Database driver

system/Database/OCI8/PreparedQuery.php

@@ -13,12 +13,11 @@
 
 use BadMethodCallException;
 use CodeIgniter\Database\BasePreparedQuery;
-use CodeIgniter\Database\PreparedQueryInterface;
 
 /**
  * Prepared query for OCI8
  */
-class PreparedQuery extends BasePreparedQuery implements PreparedQueryInterface
+class PreparedQuery extends BasePreparedQuery
 {
     /**
      * A reference to the db connection to use.

system/Database/OCI8/Result.php

@@ -12,13 +12,12 @@
 namespace CodeIgniter\Database\OCI8;
 
 use CodeIgniter\Database\BaseResult;
-use CodeIgniter\Database\ResultInterface;
 use CodeIgniter\Entity\Entity;
 
 /**
  * Result for OCI8
  */
-class Result extends BaseResult implements ResultInterface
+class Result extends BaseResult
 {
     /**
      * Gets the number of fields in the result set.