Use the api v2.0.0 module tag

This also removes the module replacement.  Go workspaces should be used for
local development instead.

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/decred/dcrd/txscript/v4 v4.1.0
 	github.com/decred/dcrd/wire v1.6.0
 	github.com/decred/dcrdata/api/types/v5 v5.0.1
-	github.com/decred/dcrtime/api/v2 v2.0.0-00010101000000-000000000000
+	github.com/decred/dcrtime/api/v2 v2.0.0
 	github.com/decred/slog v1.2.0
 	github.com/gorilla/handlers v1.5.1
 	github.com/gorilla/mux v1.8.0
@@ -22,5 +22,3 @@ require (
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 	google.golang.org/grpc v1.45.0
 )
-
-replace github.com/decred/dcrtime/api/v2 => ./api/v2

go.sum

@@ -112,6 +112,8 @@ github.com/decred/dcrdata/semver v1.0.0 h1:DBqYU/x+4LqHq/3r4xKdF6xG5ewktG2KDC+g/
 github.com/decred/dcrdata/semver v1.0.0/go.mod h1:z+nQqiAd9fYkHhBLbejysZ2FPHtgkrErWDgMf+JlZWE=
 github.com/decred/dcrdata/txhelpers/v4 v4.0.1 h1:jNPPSP5HzE4cfddj5zIJhrIEus/Tvd28Xvl/uVGjrMI=
 github.com/decred/dcrdata/txhelpers/v4 v4.0.1/go.mod h1:cUJbgsIzzI42llHDS0nkPlG49vPJ0cW6IZGbfu5sFrA=
+github.com/decred/dcrtime/api/v2 v2.0.0 h1:UB2CBvQslooQc22YF6Bqf/yTMwfxva+DOi2s7bEoJ18=
+github.com/decred/dcrtime/api/v2 v2.0.0/go.mod h1:WJshmls13ONj+9KaBwvjGIDsg/NDZa7SLWTb2foYhRc=
 github.com/decred/dcrwallet/rpc/jsonrpc/types v1.3.0 h1:yCxtFqK7X6GvZWQzHXjCwoGCy9YVe3tGEwxCjW5rYQk=
 github.com/decred/dcrwallet/rpc/jsonrpc/types v1.3.0/go.mod h1:Xvekb43GtfMiRbyIY4ZJ9Uhd9HRIAcnp46f3q2eIExU=
 github.com/decred/go-socks v1.1.0 h1:dnENcc0KIqQo3HSXdgboXAHgqsCIutkqq6ntQjYtm2U=