Remove the obsolete JSHint references.

docs/assets/js/ie-emulation-modes-warning.js

@@ -25,7 +25,7 @@
     // Detects the actual version of IE in use, even if it's in an older-IE emulation mode.
     // IE JavaScript conditional compilation docs: https://msdn.microsoft.com/library/121hztk3%28v=vs.94%29.aspx
     // @cc_on docs: https://msdn.microsoft.com/library/8ka90k2e%28v=vs.94%29.aspx
-    var jscriptVersion = new Function('/*@cc_on return @_jscript_version; @*/')() // jshint ignore:line
+    var jscriptVersion = new Function('/*@cc_on return @_jscript_version; @*/')()
     if (jscriptVersion === undefined) {
       return 11 // IE11+ not in emulation mode
     }