No info printed on `rustup target remove`

[alexcrichton]

Right now a successful rustup target remove doesn't actually print anything, whereas most other commands print out something like "successfully did blah".

[brson]

Since install says:

brian@ip-10-145-43-250:/mnt2/dev⟫ rustup target add i686-unknown-linux-gnu
info: downloading component 'rust-std' for 'i686-unknown-linux-gnu'
info: installing component 'rust-std' for 'i686-unknown-linux-gnu'

Seems like an appropriate message is

info: removing component 'rust-std' for 'i686-unknown-linux-gnu'

Neither indicates that the command was finally installed or removed, but saying "removing" is at least consistent with the existing logs, and it prints something.