remove SessionBinding trait

I'd gradually removed the usage of it while I was hacking through
with my lifetime changes.  I suppose it could be added back
but I confess that I removed it because I found it confusing
and it didn't look like it would fit on my first pass through
the code.

1 files changed, 1 insertions, 17 deletions

diff --git a/src/util.rs b/src/util.rs
index ac6c722..db27303 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1,7 +1,7 @@
 use std::borrow::Cow;
 use std::path::Path;
 
-use {raw, Error, Session};
+use {raw, Error};
 
 #[doc(hidden)]
 pub trait Binding: Sized {
@@ -11,22 +11,6 @@ pub trait Binding: Sized {
     fn raw(&self) -> Self::Raw;
 }
 
-#[doc(hidden)]
-pub trait SessionBinding<'sess>: Sized {
-    type Raw;
-
-    unsafe fn from_raw(sess: &'sess Session, raw: *mut Self::Raw) -> Self;
-    fn raw(&self) -> *mut Self::Raw;
-
-    unsafe fn from_raw_opt(sess: &'sess Session, raw: *mut Self::Raw) -> Result<Self, Error> {
-        if raw.is_null() {
-            Err(Error::last_error(sess).unwrap_or_else(Error::unknown))
-        } else {
-            Ok(SessionBinding::from_raw(sess, raw))
-        }
-    }
-}
-
 #[cfg(unix)]
 pub fn path2bytes(p: &Path) -> Result<Cow<[u8]>, Error> {
     use std::ffi::OsStr;