Remove unneeded casts in page.getParam
Remove unneeded casts in page.getParam

Closes #2186

fedelibre/hugo,tischda/hugo,ffrizzo/hugo,gohugoio/hugo,jygastaud/hugo,digitalcraftsman/hugo,vbatoufflet/hugo,vbatoufflet/hugo,mdhender/hugo,gohugoio/hugo,mayah/hugo,ffrizzo/hugo,anthonyfok/hugo,MarkDBlackwell/hugo,anthonyfok/hugo,mdhender/hugo,anthonyfok/hugo,bogem/hugo,digitalcraftsman/hugo,fedelibre/hugo,MarkDBlackwell/hugo,fedelibre/hugo,tubo028/hugo,jygastaud/hugo,tischda/hugo,abourget/hugo,melo/hugo,mdhender/hugo,tubo028/hugo,gohugoio/hugo,mitchchn/hugo,Zenithar/hugo,Zenithar/hugo,bogem/hugo,fedelibre/hugo,abourget/hugo,melo/hugo,mayah/hugo,mitchchn/hugo,mdhender/hugo