Simplify htools.hs personality selection
Simplify htools.hs personality selection

No need to do a boolean-based lookup, we can use the regular
association list lookup.

Signed-off-by: Iustin Pop <acf83a5274f31a43af6b914614365999469c1a31@google.com>
Reviewed-by: Michele Tartara <05f7077a2c6cbbdc4af4ba42e3ef89a0df846179@google.com>

yiannist/ganeti,mbakke/ganeti,leshchevds/ganeti,apyrgio/snf-ganeti,dimara/ganeti,leshchevds/ganeti,dimara/ganeti,bitemyapp/ganeti,onponomarev/ganeti,andir/ganeti,apyrgio/ganeti,andir/ganeti,grnet/snf-ganeti,onponomarev/ganeti,andir/ganeti,bitemyapp/ganeti,mbakke/ganeti,mbakke/ganeti,apyrgio/snf-ganeti,ganeti/ganeti,ganeti-github-testing/ganeti-test-1,apyrgio/ganeti,leshchevds/ganeti,ganeti-github-testing/ganeti-test-1,ganeti/ganeti,ganeti/ganeti,yiannist/ganeti,yiannist/ganeti,grnet/snf-ganeti