Removed webfonts for visual tests

...sual/baseline/ci/admonition/#empty-title/@screen/edge.png

...l/baseline/ci/admonition/#empty-title/@screen/firefox.png

...sual/baseline/ci/admonition/#empty-title/@screen/ie11.png

...visual/baseline/ci/admonition/#failure/@screen/chrome.png

...s/visual/baseline/ci/admonition/#failure/@screen/edge.png

...isual/baseline/ci/admonition/#failure/@screen/firefox.png

...s/visual/baseline/ci/admonition/#failure/@screen/ie11.png

...ual/baseline/ci/admonition/#long-title/@screen/chrome.png

...isual/baseline/ci/admonition/#long-title/@screen/edge.png

...al/baseline/ci/admonition/#long-title/@screen/firefox.png

...isual/baseline/ci/admonition/#long-title/@screen/ie11.png

tests/visual/baseline/ci/admonition/#note/@screen/chrome.png

tests/visual/baseline/ci/admonition/#note/@screen/edge.png

...s/visual/baseline/ci/admonition/#note/@screen/firefox.png

tests/visual/baseline/ci/admonition/#note/@screen/ie11.png

...visual/baseline/ci/admonition/#success/@screen/chrome.png

...s/visual/baseline/ci/admonition/#success/@screen/edge.png

...isual/baseline/ci/admonition/#success/@screen/firefox.png

...s/visual/baseline/ci/admonition/#success/@screen/ie11.png

...visual/baseline/ci/admonition/#summary/@screen/chrome.png