Improve startup time for commands that do not operate on remotes

And for tab completion, by not unnessessarily statting paths to remotes,
which used to cause eg, spin-up of removable drives.

Got rid of the remotes member of Git.Repo. This was a bit painful.

Remote.Git modifies the list of remotes as it reads their configs,
so still need a persistent list of remotes. So, put it in as
Annex.gitremotes. It's only populated by getGitRemotes, so commands
like examinekey that don't care about remotes won't do so.

This commit was sponsored by Jake Vosloo on Patreon.

RemoteDaemon/Core.hs

@@ -17,6 +17,7 @@ import RemoteDaemon.Transport
 import qualified Git
 import qualified Git.Types as Git
 import qualified Git.CurrentRepo
+import qualified Git.Construct
 import Utility.SimpleProtocol
 import Utility.ThreadScheduler
 import Config
@@ -137,8 +138,9 @@ runController ichan ochan = do
 -- Generates a map with a transport for each supported remote in the git repo,
 -- except those that have annex.sync = false
 genRemoteMap :: TransportHandle -> TChan Emitted -> IO RemoteMap
-genRemoteMap h@(TransportHandle (LocalRepo g) _) ochan = 
-	M.fromList . catMaybes <$> mapM gen (Git.remotes g)
+genRemoteMap h@(TransportHandle (LocalRepo g) _) ochan = do
+	rs <- Git.Construct.fromRemotes g
+	M.fromList . catMaybes <$> mapM gen rs
   where
 	gen r = do
 		gc <- atomically $ extractRemoteGitConfig g (Git.repoDescribe r)