Bug 1722653 - Remove MOZ_CAIRO_CFLAGS. r=firefox-build-system-reviewers,jgilbert,andi

accessible/base/moz.build

dom/canvas/moz.build

dom/media/platforms/wmf/moz.build

dom/plugins/base/moz.build

gfx/2d/moz.build

gfx/gl/moz.build

gfx/ipc/moz.build

gfx/layers/apz/test/gtest/moz.build

gfx/layers/moz.build

gfx/skia/generate_mozbuild.py

gfx/skia/moz.build

...ug-736276-Add-a-new-SkFontHost-that-takes-a-cairo_s.patch

gfx/src/moz.build

gfx/tests/gtest/moz.build

gfx/thebes/moz.build

gfx/vr/moz.build

gfx/webrender_bindings/moz.build

image/moz.build

layout/generic/moz.build

layout/painting/moz.build