[ticket/634] Remove unused sql_table_exists() function

B3P-634

tests/unit/functions/functions_test.php

@@ -31,23 +31,6 @@ class phpbb_unit_functions_functions_test extends \board3\portal\tests\testframe
 			->will($this->returnValue(array('match' => array('/disallowed_word/'), 'replace' => array(''))));
 	}
 
-	public function data_sql_table_exists()
-	{
-		return array(
-			array(true, 'phpbb_config'),
-			array(true, 'phpbb_styles'),
-			array(false, 'phpbb_foobar'),
-		);
-	}
-
-	/**
-	* @dataProvider data_sql_table_exists
-	*/
-	public function test_sql_table_exists($expected, $table)
-	{
-		$this->assertEquals($expected, sql_table_exists($table));
-	}
-
 	public function data_character_limit()
 	{
 		return array(