Miscellaneous improvements for `gulpfile.js` (issue 10362)#13490

Merged

timvandermeij merged 3 commits intomozilla:masterfrom Snuffleupagus:issue-10362

Jun 4, 2021

+206-217

Commits on Jun 4, 2021

Replace anonymous functions in gulpfile.js with named functions (issue 10362)
Snuffleupagus
committed
Clean-up gulpfile.js by removing most "-pre" tasks (issue 10362)
Snuffleupagus
committed
Remove gulp makefile, since it's broken and unused
Snuffleupagus
committed