Remove another unnecessary refresh

This was added after this PR comment: #3276 (comment) > Can we do a refresh after this reset so that the screen shows that the patch > has been cancelled? That way, if we cancel on the next popup, the screen will > be in a valid state. I don't understand what "cancel on the next popup" means; there is no further popup after this code.

Author: stefanhaller

pkg/gui/controllers/commits_files_controller.go

@@ -313,9 +313,6 @@ func (self *CommitFilesController) discard(selectedNodes []*filetree.CommitFileN
 // Reset the current patch if there is one.
 if self.c.Git().Patch.PatchBuilder.Active() {
 self.c.Git().Patch.PatchBuilder.Reset()
-if err := self.c.Refresh(types.RefreshOptions{Mode: types.BLOCK_UI}); err != nil {
-return err
-}
 }
 
 for _, node := range selectedNodes {