sync --all avoid unncessary first pass

Sped up seeking to around twice as fast, by avoiding a pass over the
worktree files when preferred content expressions of the local repo and
remotes don't use include=/exclude=.

Thanks to Lukey for identifying the optimisation.

This commit was sponsored by Brock Spratlen on Patreon.

Limit/Wanted.hs

@@ -15,12 +15,14 @@ import Types.FileMatcher
 addWantGet :: Annex ()
 addWantGet = addLimit $ Right $ MatchFiles
 	{ matchAction = const $ checkWant $ wantGet False Nothing
+	, matchNeedsFileName = False
 	, matchNeedsFileContent = False
 	}
 
 addWantDrop :: Annex ()
 addWantDrop = addLimit $ Right $ MatchFiles
 	{ matchAction = const $ checkWant $ wantDrop False Nothing Nothing
+	, matchNeedsFileName = False
 	, matchNeedsFileContent = False
 	}