Remove special route for showing a proposal, in favour of decision resource.
Remove special route for showing a proposal, in favour of decision resource.

oneclickorgs/one-click-orgs-deployment,oneclickorgs/one-click-orgs,emmapersky/one-click-orgs,oneclickorgs/one-click-orgs-deployment,oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs-deployment,emmapersky/one-click-orgs,oneclickorgs/one-click-orgs