I need to uninstall Hebcal, because it shows the Hebrew dates the same way ay as the Gregorian calendar. If I accidentally look left instead of right I get my calendar appointments confused.how do I uninstall and/or make the Hebrew dates another color

I had originally only intended to install Jewish holidays into my Outlook for Mac, but inadvertently installed the full Hebrew calendar.  So now each date also shows the Hebrew date as an an event.  

I followed the instructions to remove HEBCAL from Outlook for Mac.  It appeared to remove them.  I then closed all programs & restarted my computer.  But the Hebrew dates still show on my Outlook for Mac calendar.  If I search now for "hebcal" I get zero results.  How do I get the Hebrew dates to go away?