tree f39b1157001f444ac863974b12e53e3b65fe5948
parent 561209ee664eeecd3e7c291d0e88b9730bec84be
author Elliott Hughes <enh@google.com> 1618259911 -0700
committer Elliott Hughes <enh@google.com> 1618259911 -0700

Remove String8::toUpper().

Actually, it looks like it's only toLower() that's used, so let's remove
toUpper() separately, since it's so easy.

Test: treehugger
Change-Id: I8fae9fa513b2a34d5bd6b3f64e9305a1ee3c1ec4