fix(css): Remove mdn_url for some firefox prefixed features

[skyclouds2001]

Description

these features' mdn_url are confirmed as not-supported long ago

• -moz-binding
  • removed in firefox 67
  • Remove -moz-binding CSS property from BCD browser-compat-data#18946
  • Remove links to -moz features not available to the web content#26409
• -moz-border-top-colors, -moz-border-right-colors, -moz-border-bottom-colors, and -moz-border-left-colors
  • removed in firefox 60
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1429723
  • Remove links to -moz features not available to the web content#26409
• -moz-context-properties
  • Remove -moz-context-properties CSS property from BCD browser-compat-data#15870
  • Remove -moz-context-properties CSS property from MDN content#15083
• -moz-outline-radius-*
  • removed in firefox 88
  • https://bugzilla.mozilla.org/show_bug.cgi?id=315209
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1715984
  • Remove -moz-ouline-radius-* non-standard (deleted) properties browser-compat-data#19493
  • Remove links to -moz features not available to the web content#26409
• -moz-stack-sizing
• -moz-text-blink
  • removed in Firefox 26
  • https://bugzilla.mozilla.org/show_bug.cgi?id=812995
• -moz-user-modify
  • redirected to user-modify
• -moz-window-dragging, -moz-window-shadow
  • avaialble internally in Firefox 44
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1211040
  • Remove links to -moz features not available to the web content#26409

Motivation

Additional details

Related issues and pull requests

[pepelsbey]

Looks good! Thank you :)