Remove character from font that was breaking

When ag/5928763 was merged, it broke the build because
fontchain_linter found that this font includes U+2600.
So using fonttools, the character was removed and
fontchain_linter is now happy.

Bug: 118756857
Test: m fontchain_lint
Test: m
Test: Visual test on device
Change-Id: I75f1a5e8bf6876f5aea80961b5374f0e977a64ca
5 files changed