Remove extra code, adjust code formatting

Author: softius

proxy.php

@@ -63,23 +63,19 @@
 } else {
 	$request_params = null;
 }
+
 // Get URL from `csurl` in GET or POST data, before falling back to X-Proxy-URL header.
 if ( isset( $_REQUEST['csurl'] ) ) {
     $request_url = urldecode( $_REQUEST['csurl'] );
-} else if ( isset( $_REQUEST['csurl'] ) ) {
-    $request_url = urldecode( $_REQUEST['csurl'] );
-}
-else if ( isset( $_SERVER['HTTP_X_PROXY_URL'] ) )
-{
+} else if ( isset( $_SERVER['HTTP_X_PROXY_URL'] ) ) {
     $request_url = urldecode( $_SERVER['HTTP_X_PROXY_URL'] );
-}
-else
-{
-    header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
-    header("Status: 404 Not Found");
+} else {
+    header( $_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found');
+    header( 'Status: 404 Not Found' );
     $_SERVER['REDIRECT_STATUS'] = 404;
     exit;
 }
+
 $p_request_url = parse_url( $request_url );
 
 // csurl may exist in GET request methods