diff --git a/src/workspace-view.coffee b/src/workspace-view.coffee
index acf631a81..76452278a 100644
--- a/src/workspace-view.coffee
+++ b/src/workspace-view.coffee
@@ -51,7 +51,7 @@ class WorkspaceView extends View
   Delegator.includeInto(this)
 
   @delegatesProperty 'fullScreen', 'destroyedItemUris', toProperty: 'model'
-  @delegatesMethods 'open', 'openSync', 'openSingletonSync', 'reopenItemSync',
+  @delegatesMethods 'open', 'openSync', 'reopenItemSync',
     'saveActivePaneItem', 'saveActivePaneItemAs', 'saveAll', 'destroyActivePaneItem',
     'destroyActivePane', 'increaseFontSize', 'decreaseFontSize', toProperty: 'model'
 
diff --git a/src/workspace.coffee b/src/workspace.coffee
index 945ee9b6c..4409ed95d 100644
--- a/src/workspace.coffee
+++ b/src/workspace.coffee
@@ -111,29 +111,6 @@ class Workspace extends Model
     @activePane.activate() if activatePane
     editor
 
-  # Deprecated
-  openSingletonSync: (uri, options={}) ->
-    {initialLine, split} = options
-    # TODO: Remove deprecated changeFocus option
-    activatePane = options.activatePane ? options.changeFocus ? true
-    uri = atom.project.relativize(uri)
-
-    if pane = @paneContainer.paneForUri(uri)
-      editor = pane.itemForUri(uri)
-    else
-      pane = switch split
-        when 'left'
-          @activePane.findLeftmostSibling()
-        when 'right'
-          @activePane.findOrCreateRightmostSibling()
-        else
-          @activePane
-      editor = atom.project.openSync(uri, {initialLine})
-
-    pane.activateItem(editor)
-    pane.activate() if activatePane
-    editor
-
   # Public: Reopens the last-closed item uri if it hasn't already been reopened.
   reopenItemSync: ->
     if uri = @destroyedItemUris.pop()