From a865776fb4c44f145832b04a4088d006fd8cba3d Mon Sep 17 00:00:00 2001
From: Matias Linares <matiaslina@gmail.com>
Date: Tue, 10 Sep 2019 20:56:58 -0300
Subject: Remove `cause' method for XSafeError

---
 src/safe_x11/mod.rs | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/src/safe_x11/mod.rs b/src/safe_x11/mod.rs
index 4a1e029..a65c132 100644
--- a/src/safe_x11/mod.rs
+++ b/src/safe_x11/mod.rs
@@ -58,10 +58,6 @@ impl<'a> error::Error for XSafeError<'a> {
     fn description(&self) -> &str {
         self._description
     }
-
-    fn cause(&self) -> Option<&error::Error> {
-        None
-    }
 }
 
 impl<'a> fmt::Display for XSafeError<'a> {
@@ -102,7 +98,7 @@ pub fn root_window(display: *mut Display) -> Window {
     unsafe { xlib::XDefaultRootWindow(display) }
 }
 
-/// Grab pointer buttons. 
+/// Grab pointer buttons.
 ///
 /// # Example
 ///
-- 
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