removed old callback style code

Carson Howard · Carson Howard · commit f39bf863c123 · 2017-08-15T15:01:49.000-07:00
diff --git a/lib/rebase.js b/lib/rebase.js
@@ -87,24 +87,11 @@ Rebase.open = function(repository, options) {
 };
 
 Rebase.prototype.commit =
-  function(author, committer, encoding, message, callback) {
-    return _commit.call(this, author, committer, encoding, message)
-      .then(function(oid) {
-        if (typeof callback === "function") {
-          callback(null, oid);
-        }
-
-        return oid;
-      }, callback);
+  function(author, committer, encoding, message) {
+    return _commit.call(this, author, committer, encoding, message);
   };
 
-Rebase.prototype.abort =
-  function(callback) {
-    return _abort.call(this)
-      .then(function() {
-        if (typeof callback === "function") {
-          callback(null);
-        }
-      }, callback);
+Rebase.prototype.abort = function() {
+    return _abort.call(this);
   };
 
