Remove unused hardcoded reference from *phpunit.xml files
diff --git a/tests/travis/pdo/mysql.phpunit.xml b/tests/travis/pdo/mysql.phpunit.xml
index f6fcc1c..602030d 100644
--- a/tests/travis/pdo/mysql.phpunit.xml
+++ b/tests/travis/pdo/mysql.phpunit.xml
@@ -14,15 +14,13 @@
     </php>
 	<testsuites>
 		<testsuite name="CodeIgniter Core Test Suite">
-			<directory suffix="test.php">../../codeigniter/database</directory>
+			<directory suffix="test.php">../../codeigniter</directory>
 		</testsuite>
 	</testsuites>
 	<filters>
 		<blacklist>
 			<directory suffix=".php">PEAR_INSTALL_DIR</directory>
 			<directory suffix=".php">PHP_LIBDIR</directory>
-			<directory suffix=".php">PROJECT_BASE.'tests'</directory>
-			<directory suffix=".php">'../../../system/core/CodeIgniter.php'</directory>
 		</blacklist>
 	</filters>
 </phpunit>
\ No newline at end of file