Revert "[fonts] Remove most default fonts."

This reverts commit 1844771c.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> [fonts] Remove most default fonts.
> 
> Test: built and ran.
> 
> Change-Id: I4b322c5d799ddc72efce42e6a53ff12ebfa785c3

TBR=jamesr@google.com,anwilson@google.com,sanjayc@google.com

Change-Id: I35044ffd56a221a5178238461fe9c2f45fb595c2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true