remove extra headings on cohort table
remove extra headings on cohort table

isomerase/loomio,tachyons/loomio,loomio/loomio,annewchen/loomio,juliagra/DBCloomio,piratas-ar/loomio,FSFTN/Loomio,Collabforge/site-collabio,isomerase/loomio,tachyons/loomio,piratas-ar/loomio,annewchen/loomio,codingnutty/loomio,codingnutty/loomio,doomergithub/loomio,sicambria/loomio,codingnutty/loomio,aca13jmf/loomio,mlarghydracept/loomio,gvalerin/loomio,doomergithub/loomio,wangjun/loomio,FSFTN/Loomio,isomerase/loomio,sicambria/loomio,sicambria/loomio,sicambria/loomio,Collabforge/site-collabio,digideskio/loomio,wangjun/loomio,FSFTN/Loomio,juliagra/loomio,kimihito/loomio,digideskio/loomio,aca13jmf/loomio,juliagra/loomio,kimihito/loomio,FSFTN/Loomio,digideskio/loomio,mlarghydracept/loomio,kimihito/loomio,gvalerin/loomio,doomergithub/loomio,tachyons/loomio,mhjb/loomio,mhjb/loomio,piratas-ar/loomio,loomio/loomio,juliagra/DBCloomio,loomio/loomio,annewchen/loomio,wangjun/loomio,isomerase/loomio,gvalerin/loomio,mlarghydracept/loomio,tachyons/loomio,aca13jmf/loomio,Collabforge/site-collabio,juliagra/DBCloomio,piratas-ar/loomio,juliagra/loomio,Collabforge/site-collabio,mhjb/loomio,mhjb/loomio,loomio/loomio