Don't redraw remote branches view when its width changes

The rendering of remote branches is in no way dependent on the width of the view
(or the screen mode). Unlike in the local branches view, we don't truncate long
branch names here (because there's no more information after them).

This is an error introduced in d5b4f7bb3e.

pkg/gui/context/remote_branches_context.go

@@ -43,7 +43,6 @@ func NewRemoteBranchesContext(
 				Kind:                        types.SIDE_CONTEXT,
 				Focusable:                   true,
 				Transient:                   true,
-				NeedsRerenderOnWidthChange:  true,
 				NeedsRerenderOnHeightChange: true,
 			})),
 			ListRenderer: ListRenderer{