OWNERS: multiple fixes

- The email address for Thang is not the same as the one in Gerrit,
  fix this.

- Remove Phong Vo, who has never created a Gerrit or Discord account.
- Remove Quan Nguyen, who has never created a Gerrit or Discord account.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I6340d930bfb6b74831b49972f38a529ff4ca5fa5
1 file changed