convert all applicable commands to new 2x faster annexed file seeking

This removes all calls to inAnnex, except for some involving --batch.
It may be that the batch code could get a similar speedup, but I don't
know if people habitually pass a huge number of files through --batch
that git-annex does not need to do anything to process, so I skipped it
for now.

A few calls to ifAnnexed remain, and might be worth doing more to
convert. In particular, Command.Sync has one that would probably speed
it up by a good amount.

(also removed some dead code from Command.Lock)

Command/Log.hs

@@ -86,8 +86,8 @@ seek o = do
 	zone <- liftIO getCurrentTimeZone
 	let outputter = mkOutputter m zone o
 	case (logFiles o, allOption o) of
-		(fs, False) -> withFilesInGit ww
-			(commandAction . (whenAnnexed $ start o outputter)) 
+		(fs, False) -> withFilesInGitAnnex ww
+			(commandAction' (start o outputter))
 			=<< workTreeItems ww fs
 		([], True) -> commandAction (startAll o outputter)
 		(_, True) -> giveup "Cannot specify both files and --all"