Port twbs#18091 to v3

Remove http://wkbug.com/149935 from Wall of Browser Bugs

It's been fixed in WebKit Nightly!
See https://trac.webkit.org/changeset/191623 and http://wkbug.com/149366
Refs twbs#17438, twbs#14237

[ci skip]

Author: cvrebert

docs/_data/browser-bugs.yml

@@ -188,16 +188,6 @@
   origin: >
     Bootstrap#16814
 
--
-  browser: >
-    Safari
-  summary: >
-    Unexplained `1px` horizontal space between `display: table-cell` elements
-  upstream_bug: >
-    WebKit#149935
-  origin: >
-    Bootstrap#17438, Bootstrap#14237
-
 -
   browser: >
     Safari (OS X)