Revert "Issue #2688615 by rballou, dawehner: Add the file to Error::formatBacktrace()"

This reverts commit 0d77fa57.

core/lib/Drupal/Core/Utility/Error.php

@@ -177,11 +177,7 @@ public static function formatBacktrace(array $backtrace) {
 
       $line = '';
       if (isset($trace['line'])) {
-        $line = " (Line: {$trace['line']}";
-        if (isset($trace['file'])) {
-          $line .= ':' . $trace['file'];
-        }
-        $line .= ")";
+        $line = " (Line: {$trace['line']})";
       }
 
       $return .= $call['function'] . '(' . implode(', ', $call['args']) . ")$line\n";

core/tests/Drupal/Tests/Core/Utility/ErrorTest.php

@@ -84,28 +84,28 @@ public function providerTestFormatBacktrace() {
     $data = array();
 
     // Test with no function, main should be in the backtrace.
-    $data[] = array(array($this->createBacktraceItem(NULL, NULL)), "main() (Line: 10:test_file)\n");
+    $data[] = array(array($this->createBacktraceItem(NULL, NULL)), "main() (Line: 10)\n");
 
     $base = array($this->createBacktraceItem());
-    $data[] = array($base, "test_function() (Line: 10:test_file)\n");
+    $data[] = array($base, "test_function() (Line: 10)\n");
 
     // Add a second item.
     $second_item = $base;
     $second_item[] = $this->createBacktraceItem('test_function_2');
 
-    $data[] = array($second_item, "test_function() (Line: 10:test_file)\ntest_function_2() (Line: 10:test_file)\n");
+    $data[] = array($second_item, "test_function() (Line: 10)\ntest_function_2() (Line: 10)\n");
 
     // Add a second item, with a class.
     $second_item_class = $base;
     $second_item_class[] = $this->createBacktraceItem('test_function_2', 'TestClass');
 
-    $data[] = array($second_item_class, "test_function() (Line: 10:test_file)\nTestClass->test_function_2() (Line: 10:test_file)\n");
+    $data[] = array($second_item_class, "test_function() (Line: 10)\nTestClass->test_function_2() (Line: 10)\n");
 
     // Add a second item, with a class.
     $second_item_args = $base;
     $second_item_args[] = $this->createBacktraceItem('test_function_2', NULL, array('string', 10, new \stdClass()));
 
-    $data[] = array($second_item_args, "test_function() (Line: 10:test_file)\ntest_function_2('string', 10, Object) (Line: 10:test_file)\n");
+    $data[] = array($second_item_args, "test_function() (Line: 10)\ntest_function_2('string', 10, Object) (Line: 10)\n");
 
     return $data;
   }