remove command type definitions

These were a mistake, they make the type signatures harder to read and
less flexible. The CommandSeek, CommandStart, CommandPerform, and
CommandCleanup types were a good idea, but composing them with the
parameters expected is going too far.

Command/Move.hs

@@ -31,7 +31,7 @@ seek = [withFilesInGit $ start True]
  -
  - This only operates on the cached file content; it does not involve
  - moving data in the key-value backend. -}
-start :: Bool -> CommandStartString
+start :: Bool -> FilePath -> CommandStart
 start move file = do
 	noAuto
 	to <- Annex.getState Annex.toremote
@@ -74,7 +74,7 @@ remoteHasKey remote key present	= do
  - A file's content can be moved even if there are insufficient copies to
  - allow it to be dropped.
  -}
-toStart :: Remote.Remote Annex -> Bool -> CommandStartString
+toStart :: Remote.Remote Annex -> Bool -> FilePath -> CommandStart
 toStart dest move file = isAnnexed file $ \(key, _) -> do
 	g <- Annex.gitRepo
 	u <- getUUID g
@@ -124,7 +124,7 @@ toCleanup dest move key = do
  - If the current repository already has the content, it is still removed
  - from the remote.
  -}
-fromStart :: Remote.Remote Annex -> Bool -> CommandStartString
+fromStart :: Remote.Remote Annex -> Bool -> FilePath -> CommandStart
 fromStart src move file = isAnnexed file $ \(key, _) -> do
 	g <- Annex.gitRepo
 	u <- getUUID g