tornado: do not install ca-certificates.crt

Do not install Tornado's private list of CA certificates, as
we already tell pycurl to use the system's list.

The ca-certificates.crt in Tornado will grow increasingly stale,
and its presence is misleading. Removing it also reduces the
GFMN100 image size by 110 KBytes, which is nice.

Change-Id: Ic250fdbdc46b3cd27ef9dd5d94f9cbd6bf59d477
2 files changed