Eliminate superfluous code.

Author: sebastianbergmann

PHP/CodeCoverage/Filter.php

@@ -253,17 +253,11 @@ public function isFile($filename)
      * @return boolean
      * @throws PHP_CodeCoverage_Exception
      */
-    public function isFiltered($filename, $ignoreWhitelist = FALSE)
+    public function isFiltered($filename)
     {
-        if (!is_bool($ignoreWhitelist)) {
-            throw PHP_CodeCoverage_Util_InvalidArgumentHelper::factory(
-              1, 'boolean'
-            );
-        }
-
         $filename = realpath($filename);
 
-        if (!$ignoreWhitelist && !empty($this->whitelistedFiles)) {
+        if (!empty($this->whitelistedFiles)) {
             return !isset($this->whitelistedFiles[$filename]);
         }
 

Tests/PHP/CodeCoverage/FilterTest.php

@@ -294,13 +294,4 @@ public function testNotWhitelistedFileIsFiltered()
         $this->filter->addFileToWhitelist($this->files[0]);
         $this->assertTrue($this->filter->isFiltered($this->files[1]));
     }
-
-    /**
-     * @covers            PHP_CodeCoverage_Filter::isFiltered
-     * @expectedException PHP_CodeCoverage_Exception
-     */
-    public function testIsFilteredThrowsExceptionForInvalidArgument()
-    {
-        $this->filter->isFiltered('foo', array(), NULL);
-    }
 }