[Tizen] Temporarily disable -finline-functions.

This flag was recently introduced in Tizen's scm/meta/obs repository
commit df9ffaea0fdb71ebbe4b84afafdf9eaa9a997a15, and causes the Chromium
build to fail because it causes some spurious `maybe-uninitialized`
errors.

Disable the flag while the problem is deal with in TC-2299 so that our
Tizen Common bots do not stay red and our canary builds can resume.

BUG=TC-2299
Merge pull request #2767 from rakuco/disable-finline-functions

[Tizen] Temporarily disable -finline-functions.