Remove http://bugzil.la/1060131 from Wall of Browser Bugs

http://bugzil.la/1060131 has been fixed by http://bugzil.la/823483 which should land in Firefox 46.
Refs #14320
[ci skip]

docs/_data/browser-bugs.yml

@@ -68,16 +68,6 @@
   origin: >
     Bootstrap#13453
 
--
-  browser: >
-    Firefox
-  summary: >
-    Button elements with `width: 100%` become cropped in long tables.
-  upstream_bug: >
-    Mozilla#1060131
-  origin: >
-    Bootstrap#14320
-
 -
   browser: >
     Firefox