Removed reference to style tag for opacity (#9634)
Removed reference to style tag for opacity (#9634)

As style tag for `opacity` was replaced with `amp-boilerplate (back in this [commit](https://github.com/ampproject/amphtml/commit/0a056ca50ac8cb9ba8e5a6489baeecb5ed958556), updated the text to reflect those changes.
erwinmombay/amphtml,honeybadgerdontcare/amphtml,ampproject/amphtml,honeybadgerdontcare/amphtml,jmadler/amphtml,widespace-os/amphtml,shawnbuso/amphtml,jridgewell/amphtml,ampproject/amphtml,arealit/amphtml,erwinmombay/amphtml,arealit/amphtml,kixer-com/amphtml,kixer-com/amphtml,Gregable/amphtml,src-code/amphtml,prateekbh/amphtml,yandex-pcode/amphtml,shawnbuso/amphtml,ampproject/amphtml,wjfang/amphtml,jridgewell/amphtml,mhc-gh/amphtml,pedjoni8/amphtml,techhtml/amphtml,danielrozenberg/amphtml,bpaduch/amphtml,techhtml/amphtml,powdercloud/amphtml,Gregable/amphtml,laterpay/amphtml,mhc-gh/amphtml,chaveznvg/amphtml,shawnbuso/amphtml,yieldbot/amphtml,ampproject/amphtml,pedjoni8/amphtml,chaveznvg/amphtml,comScore/amphtml,chaveznvg/amphtml,kamtschatka/amphtml,sriramkrish85/amphtml,src-code/amphtml,jpettitt/amphtml,aghassemi/amphtml,zhouyx/amphtml,avimehta/amphtml,chaveznvg/amphtml,rajkumarsrk/amphtml,mhc-gh/amphtml,camelburrito/amphtml,mhc-gh/amphtml,techhtml/amphtml,kixer-com/amphtml,zhucl/amphtml,zhouyx/amphtml,clawr/amphtml,zhouyx/amphtml,clawr/amphtml,media-net/amphtml,yieldmo/amphtml,sriramkrish85/amphtml,yandex-pcode/amphtml,vmarteev/amphtml,BenDz/amphtml,arealit/amphtml,koshka/amphtml,honeybadgerdontcare/amphtml,gumgum/amphtml,Gregable/amphtml,sklobovskaya/amphtml,alanorozco/amphtml,gumgum/amphtml,ADITION/amphtml,koshka/amphtml,prateekbh/amphtml,kixer-com/amphtml,smartadserver/amphtml,aghassemi/amphtml,sklobovskaya/amphtml,zhouyx/amphtml,sebastianbenz/amphtml,wjfang/amphtml,laterpay/amphtml,dotandads/amphtml,Gregable/amphtml,smartadserver/amphtml,prateekbh/amphtml,sebastianbenz/amphtml,vmarteev/amphtml,pedjoni8/amphtml,jpettitt/amphtml,yieldbot/amphtml,yandex-pcode/amphtml,adup-tech/amphtml,vmarteev/amphtml,ampproject/amphtml,media-net/amphtml,comScore/amphtml,nexxtv/amphtml,src-code/amphtml,yieldmo/amphtml,kixer-com/amphtml,bpaduch/amphtml,comScore/amphtml,Gregable/amphtml,yieldbot/amphtml,sharethrough/amphtml,dotandads/amphtml,avimehta/amphtml,camelburrito/amphtml,keithwrightbos/amphtml,dotandads/amphtml,clawr/amphtml,adiant/amphtml,gumgum/amphtml,sklobovskaya/amphtml,prateekbh/amphtml,smartadserver/amphtml,vmarteev/amphtml,techhtml/amphtml,src-code/amphtml,nexxtv/amphtml,camelburrito/amphtml,engtat/amphtml,honeybadgerdontcare/amphtml,vmarteev/amphtml,yieldmo/amphtml,voyagegroup/amphtml,taboola/amphtml,pedjoni8/amphtml,voyagegroup/amphtml,powdercloud/amphtml,keithwrightbos/amphtml,honeybadgerdontcare/amphtml,techhtml/amphtml,yieldbot/amphtml,jpettitt/amphtml,honeybadgerdontcare/amphtml,keithwrightbos/amphtml,bpaduch/amphtml,rajkumarsrk/amphtml,jpettitt/amphtml,luciancrasovan/amphtml,sharethrough/amphtml,donttrustthisbot/amphtml,smartadserver/amphtml,rajkumarsrk/amphtml,cory-work/amphtml,adiant/amphtml,alanorozco/amphtml,jridgewell/amphtml,nexxtv/amphtml,nexxtv/amphtml,chaveznvg/amphtml,powdercloud/amphtml,tlong2/amphtml,adup-tech/amphtml,bpaduch/amphtml,adiant/amphtml,cvializ/amphtml,lannka/amphtml,sebastianbenz/amphtml,camelburrito/amphtml,jmadler/amphtml,kamtschatka/amphtml,rajkumarsrk/amphtml,avimehta/amphtml,rajkumarsrk/amphtml,kamtschatka/amphtml,tlong2/amphtml,zhangsu/amphtml,prateekbh/amphtml,alanorozco/amphtml,widespace-os/amphtml,zhouyx/amphtml,wjfang/amphtml,Gregable/amphtml,camelburrito/amphtml,sharethrough/amphtml,wjfang/amphtml,rsimha-amp/amphtml,kamtschatka/amphtml,kamtschatka/amphtml,arealit/amphtml,jpettitt/amphtml,camelburrito/amphtml,aghassemi/amphtml,nexxtv/amphtml,aghassemi/amphtml,rajkumarsrk/amphtml,comScore/amphtml,koshka/amphtml,chaveznvg/amphtml,powdercloud/amphtml,ADITION/amphtml,ADITION/amphtml,laterpay/amphtml,taboola/amphtml,donttrustthisbot/amphtml,clawr/amphtml,keithwrightbos/amphtml,luciancrasovan/amphtml,cory-work/amphtml,cory-work/amphtml,sharethrough/amphtml,lannka/amphtml,cory-work/amphtml,adup-tech/amphtml,cory-work/amphtml,wjfang/amphtml,alanorozco/amphtml,zhucl/amphtml,media-net/amphtml,yandex-pcode/amphtml,yieldmo/amphtml,zhangsu/amphtml,cvializ/amphtml,media-net/amphtml,zhucl/amphtml,ampproject/amphtml,kamtschatka/amphtml,laterpay/amphtml,kixer-com/amphtml,comScore/amphtml,erwinmombay/amphtml,pedjoni8/amphtml,jmadler/amphtml,sklobovskaya/amphtml,aghassemi/amphtml,vmarteev/amphtml,sharethrough/amphtml,jmadler/amphtml,jpettitt/amphtml,danielrozenberg/amphtml,danielrozenberg/amphtml,tlong2/amphtml,keithwrightbos/amphtml,zhucl/amphtml,widespace-os/amphtml,mhc-gh/amphtml,rsimha-amp/amphtml,taboola/amphtml,engtat/amphtml,cvializ/amphtml,BenDz/amphtml,sklobovskaya/amphtml,danielrozenberg/amphtml,tlong2/amphtml,luciancrasovan/amphtml,yandex-pcode/amphtml,rsimha-amp/amphtml,arealit/amphtml,vmarteev/amphtml,avimehta/amphtml,adup-tech/amphtml,engtat/amphtml,laterpay/amphtml,luciancrasovan/amphtml,sklobovskaya/amphtml,donttrustthisbot/amphtml,avimehta/amphtml,wjfang/amphtml,BenDz/amphtml,media-net/amphtml,voyagegroup/amphtml,shawnbuso/amphtml,jridgewell/amphtml,jridgewell/amphtml,laterpay/amphtml,engtat/amphtml,kixer-com/amphtml,taboola/amphtml,rajkumarsrk/amphtml,adup-tech/amphtml,voyagegroup/amphtml,koshka/amphtml,adiant/amphtml,powdercloud/amphtml,smartadserver/amphtml,zhucl/amphtml,zhangsu/amphtml,tlong2/amphtml,Gregable/amphtml,danielrozenberg/amphtml,erwinmombay/amphtml,voyagegroup/amphtml,lannka/amphtml,engtat/amphtml,sebastianbenz/amphtml,gumgum/amphtml,taboola/amphtml,lannka/amphtml,comScore/amphtml,lannka/amphtml,taboola/amphtml,bpaduch/amphtml,zhouyx/amphtml,honeybadgerdontcare/amphtml,lannka/amphtml,zhouyx/amphtml,alanorozco/amphtml,widespace-os/amphtml,media-net/amphtml,pedjoni8/amphtml,yieldmo/amphtml,rsimha-amp/amphtml,keithwrightbos/amphtml,BenDz/amphtml,jpettitt/amphtml,media-net/amphtml,koshka/amphtml,koshka/amphtml,alanorozco/amphtml,smartadserver/amphtml,sriramkrish85/amphtml,alanorozco/amphtml,cvializ/amphtml,luciancrasovan/amphtml,ampproject/amphtml,donttrustthisbot/amphtml,powdercloud/amphtml,widespace-os/amphtml,clawr/amphtml,camelburrito/amphtml,powdercloud/amphtml,bpaduch/amphtml,voyagegroup/amphtml,lannka/amphtml,yandex-pcode/amphtml,arealit/amphtml,yandex-pcode/amphtml,yieldmo/amphtml,nexxtv/amphtml,prateekbh/amphtml,sriramkrish85/amphtml,bpaduch/amphtml,jpettitt/amphtml,engtat/amphtml,zhangsu/amphtml,jmadler/amphtml,sebastianbenz/amphtml,comScore/amphtml,cvializ/amphtml,rsimha-amp/amphtml,erwinmombay/amphtml,alanorozco/amphtml,gumgum/amphtml,luciancrasovan/amphtml,cory-work/amphtml,luciancrasovan/amphtml,voyagegroup/amphtml,BenDz/amphtml,yieldmo/amphtml,wjfang/amphtml,donttrustthisbot/amphtml,src-code/amphtml,erwinmombay/amphtml,zhucl/amphtml,aghassemi/amphtml,donttrustthisbot/amphtml,adiant/amphtml,adiant/amphtml,engtat/amphtml,jridgewell/amphtml,sklobovskaya/amphtml,tlong2/amphtml,adup-tech/amphtml,rsimha-amp/amphtml,mhc-gh/amphtml,ADITION/amphtml,zhangsu/amphtml,zhangsu/amphtml,clawr/amphtml,dotandads/amphtml,cvializ/amphtml,widespace-os/amphtml,sharethrough/amphtml,shawnbuso/amphtml,clawr/amphtml,dotandads/amphtml,gumgum/amphtml,sebastianbenz/amphtml,mhc-gh/amphtml,sriramkrish85/amphtml,mhc-gh/amphtml,gumgum/amphtml,jmadler/amphtml,keithwrightbos/amphtml,cory-work/amphtml,avimehta/amphtml,donttrustthisbot/amphtml,BenDz/amphtml,rsimha-amp/amphtml,nexxtv/amphtml,shawnbuso/amphtml,jridgewell/amphtml,danielrozenberg/amphtml,techhtml/amphtml,dotandads/amphtml,arealit/amphtml,danielrozenberg/amphtml,Gregable/amphtml,media-net/amphtml,yieldbot/amphtml,taboola/amphtml,danielrozenberg/amphtml,zhucl/amphtml,yieldbot/amphtml,shawnbuso/amphtml,ampproject/amphtml,ADITION/amphtml,adiant/amphtml,sriramkrish85/amphtml,prateekbh/amphtml,src-code/amphtml