Remove option to customize render function

Author: theodorejb

README.md

@@ -282,29 +282,6 @@ Here are the list of LightnCandy\Runtime debug options for render function:
 * `DEBUG_TAGS_ANSI` : turn the return value of render function into normalized mustache tags with ANSI color
 * `DEBUG_TAGS_HTML` : turn the return value of render function into normalized mustache tags with HTML comments
 
-Customize Render Function
--------------------------
-
-If you want to do extra tasks inside render function or add more comment, you may use `renderex` when `compile()` . For example, this sample embed the compile time comment into the template:
-
-```php
-$php = LightnCandy::compile($template, array(
-    'renderex' => '// Compiled at ' . date('Y-m-d h:i:s')
-));
-```
-
-Your render function will be:
-
-```php
-function ($in) {
-    $cx = array(...);
-    // compiled at 1999-12-31 00:00:00
-    return .....
-}
-```
-
-Please make sure the passed in `renderex` is valid PHP, LightnCandy will not check it.
-
 Unsupported Feature
 -------------------
 

src/Compiler.php

@@ -107,7 +107,6 @@ public static function composePHPRender($context, $code)
         'blparam' => array(),
         'partialid' => 0,
     );
-    {$context['renderex']}
     {$context['ops']['array_check']}
     {$context['ops']['op_start']}'$code'{$context['ops']['op_end']}
 };

src/Context.php

@@ -102,7 +102,6 @@ public static function create($options)
             'partialblock' => array(),
             'inlinepartial' => array(),
             'helpers' => array(),
-            'renderex' => isset($options['renderex']) ? $options['renderex'] : '',
             'safestring' => '\\LightnCandy\\SafeString',
             'safestringalias' => isset($options['safestring']) ? $options['safestring'] : 'LS',
             'rawblock' => false,