Revert "Force all Webkit-browsers/forks to use SVG fonts"

This is the possible cause of serious rendering issues with Chrome on
Windows 7.

As of Chrome 38, "SVG fonts are no longer supported, except on Windows
systems older than Windows 7"
See http://blog.chromium.org/2014/08/chrome-38-beta-new-primitives-for-next.html

Bug # 17129

This reverts commit 4d4c5ae76b.

app/assets/stylesheets/global/_mixins.sass

@@ -259,12 +259,3 @@ $button_gray_font_color: #222222
     src: font-url('#{$file-path}.eot')
     src: font-url('#{$file-path}.eot?#iefix') format('embedded-opentype'), font-url('#{$file-path}.woff') format('woff'), font-url('#{$file-path}.ttf') format('truetype'), font-url('#{$file-path}.svg##{$svg-font-id}') format('svg')
     text-rendering: optimizeLegibility
-
-  // Always use SVG fonts (rather than WOFF/TTF) in WebKit-based browers
-  // FIXME: we only want to target Chrome on Windows
-  @media screen and (-webkit-min-device-pixel-ratio:0)
-    @font-face
-      font-family: $font-family
-      font-weight: $weight
-      font-style:  $style
-      src: font-url('#{$file-path}.svg##{$svg-font-id}') format('svg')