diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 21d57da..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "tools/phptools"]
-	path = tools/phptools
-	url = git://github.com/ralphschindler/PHPTools.git
diff --git a/test/Writer/AbstractWriterTestCase.php b/test/Writer/AbstractWriterTestCase.php
index 2039b9c..7319703 100644
--- a/test/Writer/AbstractWriterTestCase.php
+++ b/test/Writer/AbstractWriterTestCase.php
@@ -66,7 +66,12 @@ protected function getTestAssetFileName()
        
     public function tearDown()
     {
-        @unlink($this->getTestAssetFileName());
+        if (file_exists($this->getTestAssetFileName())) {
+            if (!is_writable($this->getTestAssetFileName())) {
+                chmod($this->getTestAssetFileName(), 0777);
+            }
+            @unlink($this->getTestAssetFileName());
+        }
     }
     
     public function testNoFilenameSet()