Plugins cloned with any non-default `clone.defaultRemoteName` setting recommend `PlugClean`

[jgilchrist]

I have clone.defaultRemoteName set to upstream rather than origin. This PR seems to account for this. However, I still see new plugins cloned with upstream. As a result, because this line assumes the remote name as "origin", the plugin update UI recommends a PlugClean for all of these plugins.

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NVIM v0.6.1
Build type: Release
LuaJIT 2.1.0-beta3
Compiled by brew@Monterey

Features: +acl +iconv +tui
See ":help feature-compile"

   system vimrc file: "$VIM/sysinit.vim"
  fall-back for $VIM: "/usr/local/Cellar/neovim/0.6.1/share/nvim"

• Type:
  • [x] Bug
  • [ ] Enhancement
  • [ ] Feature Request
  • [ ] Question
• OS:
  • [ ] All/Other
  • [ ] Linux
  • [x] OS X
  • [ ] Windows
• Vim:
  • [ ] Terminal Vim
  • [ ] GVim
  • [x] Neovim

[jgilchrist]

Turns out the PR worked just fine - the script I thought was keeping vim-plug up to date was not bringing in the latest version, so I didn't have that fix. All working now!