view: Use proxy to get token metadata from
view: Use proxy to get token metadata from

The mutate_MV() call needs token metadata and it gets them from
global storage service. Fixing it not to use globals is a huge
refactoring, so for now just get the tokens from global storage
proxy.

Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@scylladb.com>

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla