Simplify unicode support detection (and remove deopt from module def).
Simplify unicode support detection (and remove deopt from module def).

happibum/acorn,Rich-Harris/acorn,btmills/acorn,marijnh/acorn,xiemaisi/acorn,Rich-Harris/acorn,mathiasbynens/acorn,ajaxorg/acorn,mathiasbynens/acorn,ternjs/acorn,TimothyGu/acorn,mysticatea/acorn,MarcelGerber/acorn,xiemaisi/acorn,xiemaisi/acorn,MarcelGerber/acorn,ternjs/acorn,ajaxorg/acorn,happibum/acorn,TimothyGu/acorn,btmills/acorn,btmills/acorn,ajaxorg/acorn,marijnh/acorn,mysticatea/acorn,mysticatea/acorn,mathiasbynens/acorn,marijnh/acorn,TimothyGu/acorn,MarcelGerber/acorn,happibum/acorn,Rich-Harris/acorn,ternjs/acorn