remove unused variable declarations

Author: robocoder

src/Compiler.php

@@ -479,7 +479,7 @@ protected function matchExtendsSingle($rawSingle, &$outOrigin)
         $found = false;
 
         foreach ($counts as $idx => $count) {
-            list($target, $origin, $block) = $this->extends[$idx];
+            list($target, $origin, /* $block */) = $this->extends[$idx];
 
             // check count
             if ($count !== count($target)) {
@@ -1766,7 +1766,7 @@ protected function compileChild($child, OutputBlock $out)
      */
     protected function expToString($exp)
     {
-        list(, $op, $left, $right, $inParens, $whiteLeft, $whiteRight) = $exp;
+        list(, $op, $left, $right, /* $inParens */, $whiteLeft, $whiteRight) = $exp;
 
         $content = array($this->reduce($left));
 

src/Parser.php

@@ -118,7 +118,7 @@ public function getSourceName()
      */
     public function throwParseError($msg = 'parse error')
     {
-        list($line, $column) = $this->getSourcePosition($this->count);
+        list($line, /* $column */) = $this->getSourcePosition($this->count);
 
         $loc = empty($this->sourceName) ? "line: $line" : "$this->sourceName on line $line";
 

src/Server.php

@@ -116,13 +116,12 @@ protected function metadataName($out)
     /**
      * Determine whether .scss file needs to be re-compiled.
      *
-     * @param string $in   Input path
      * @param string $out  Output path
      * @param string $etag ETag
      *
      * @return boolean True if compile required.
      */
-    protected function needsCompile($in, $out, &$etag)
+    protected function needsCompile($out, &$etag)
     {
         if (! is_file($out)) {
             return true;
@@ -326,7 +325,7 @@ public function serve($salt = '')
             $output = $this->cacheName($salt . $input);
             $etag = $noneMatch = trim($this->getIfNoneMatchHeader(), '"');
 
-            if ($this->needsCompile($input, $output, $etag)) {
+            if ($this->needsCompile($output, $etag)) {
                 try {
                     list($css, $etag) = $this->compile($input, $output);
 
@@ -408,7 +407,7 @@ public function checkedCachedCompile($in, $out, $force = false)
             throw new ServerException('Invalid or unwritable output file specified.');
         }
 
-        if ($force || $this->needsCompile($in, $out, $etag)) {
+        if ($force || $this->needsCompile($out, $etag)) {
             list($css, $etag) = $this->compile($in, $out);
         } else {
             $css = file_get_contents($out);