chromium: README: remove @ashie
chromium: README: remove @ashie

* as requested in:
  https://github.com/OSSystems/meta-browser/pull/470#discussion_r596458124

Signed-off-by: Martin Jansa <516df3ff67e1fa5d153800b15fb204c0a1a389dc@gmail.com>

schnitzeltony/meta-browser,schnitzeltony/meta-browser,OSSystems/meta-browser,schnitzeltony/meta-browser,schnitzeltony/meta-browser,OSSystems/meta-browser,OSSystems/meta-browser,OSSystems/meta-browser