remove tabs that snuck into delivery metrics index
remove tabs that snuck into delivery metrics index

GilUpstream/docs,Zaftula/docs,bogdanboss/docs,ksigler7/docs,hardikjain29/docs,sendgrid/docs,jacobmovingfwd/docs,Aonepathan/docs,L2G/docs,L2G/docs,hardikjain29/docs,sendgrid/docs,Zaftula/docs,Zaftula/docs,hardikjain29/docs,taz77/docs,Whatthefoxsays/docs,katieporter/docs,Ranhiru/docs,taz77/docs,Whatthefoxsays/docs,jacobmovingfwd/docs,L2G/docs,jacobmovingfwd/docs,awwa/docs,sendgrid/docs,GilUpstream/docs,jacobmovingfwd/docs,hardikjain29/docs,Ranhiru/docs,awwa/docs,ksigler7/docs,GilUpstream/docs,taz77/docs,Zaftula/docs,Whatthefoxsays/docs,L2G/docs,katieporter/docs,taz77/docs,katieporter/docs,bogdanboss/docs,taz77/docs,jacobmovingfwd/docs,Ranhiru/docs,awwa/docs,Aonepathan/docs,Aonepathan/docs,Zaftula/docs,Aonepathan/docs,awwa/docs,Ranhiru/docs,GilUpstream/docs,Aonepathan/docs,katieporter/docs,katieporter/docs,bogdanboss/docs,bogdanboss/docs,GilUpstream/docs,L2G/docs,hardikjain29/docs,awwa/docs,Ranhiru/docs,bogdanboss/docs,ksigler7/docs